[Problem] To obtain a crystal oscillator that is constructed in a reduced size but achieves stable oscillation output. [Solution] A crystal oscillator equipped with a package that houses a quartz resonator therein, the crystal oscillator comprising: a substrate which is provided with, on one surface side thereof, the quartz resonator and with, on the other surface side, a heat generator for adjusting the internal temperature of the package and circuit components including an oscillation circuit for oscillating said quartz resonator; a step part which is formed on an inner wall of the package for supporting only an edge part of the substrate from the one surface side so as to cause the quartz resonator, the circuit components, and the heat generator to be separated from the walls of the package; and a wire which, without going through the substrate, connects a terminal provided to the heat generator and a terminal provided inside the package.
H01L 23/04 - Conteneurs; Scellements caractérisés par la forme
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
2.
PEDESTAL, VIBRATOR, AND OSCILLATOR FOR VIBRATION ELEMENT
[Problem] To provide a pedestal, a vibrator, and an oscillator with which vibration resistance is improved by suppressing the influence of vibration from the outside, and phase noise characteristics can be improved. [Solution] Provided are a pedestal, and a vibrator and an oscillator which are provided with the pedestal, the pedestal having: connection parts 14 connected to a substrate of a package 3 along long sides of a main body; gap parts 10c, 10d formed inside the connection parts 14 along the long side; a mount part 11 which is for a quartz piece 2 and inserted into the gap parts 10c, 10d; and arm parts 13 which have shapes curved in an arc shape and connect the mounting parts 11 and the connection parts 14 on the four corners of the main body.
Provided is a sensing device that uses a detection sensor that comprises a temperature adjustment mechanism for adjusting the temperature of a piezoelectric vibrator according to a voltage and causes the desorption of an object to be sensed from the piezoelectric vibrator by increasing/decreasing the temperature, wherein a voltage adjustment unit for adjusting a voltage for adjusting the temperature of the temperature adjustment mechanism is made to be common and not dependent on the temperature adjustment mechanism of the detection sensor. A drive voltage is adjusted such that the amplification factor for the temperature adjustment voltage input into the drive voltage adjustment unit 73 for adjusting the temperature of the temperature adjustment mechanism is adjusted according to the type of a detection sensor 2 connected to a device body part 3. As a result, when a CQCM sensor 2A that heats a crystal oscillator 4 using a heater circuit 41 and a TQCM sensor 2B that adjusts the temperature of a crystal oscillator 4 using a Peltier element 43 are both used, the adjustment range of the drive power supplied to the heater circuit 41 and Peltier element 43 can be changed.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
[Problem] To provide a technique, with respect to an oscillating device that uses a crystal oscillator and stabilizes an oscillating frequency on the basis of an external clock signal, for stabilizing the oscillating frequency that is output even when the external clock is interrupted. [Solution] An oscillating device which outputs a frequency signal on the basis of an oscillating frequency of a crystal oscillator 10 and a frequency setting value and is provided with: a frequency difference detection unit 207 for determining a difference value corresponding to a frequency difference between an output frequency of the oscillating device and an external clock signal; and a temperature detection unit. During a period in which the external clock signal is being acquired, an aging coefficient (a1) and a temperature characteristic coefficient (a2) are determined on the basis of a change over time of the difference value determined by the frequency difference detection unit 207, and a change over time of a detected temperature. Further, during a hold-over period, a frequency correction value is calculated using the aging coefficient (a1) and the temperature characteristic coefficient (a2), and is added to the frequency setting value.
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p.ex. de l'alimentation en énergie contre les variations de température uniquement
H03L 7/14 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer une fréquence constante quand la tension d'alimentation ou la tension de correction fait défaut
A measurement device 1 comprises: an acquisition unit 19 for acquiring reference information associating the distance between an object and a position where reflected waves that are electromagnetic waves produced when predetermined electromagnetic waves transmitted toward the object are reflected at the object are received, a phase of the reflected waves, and a physical property of the object; a transmitting antenna 11 for transmitting electromagnetic waves toward a measurement subject 2; a receiving antenna 12 for receiving reflected waves from the measurement subject 2; and an identification unit 20 for identifying a physical property of the measurement subject 2 on the basis of the phase of the reflected waves received by the receiving antenna 12, by consulting the reference information that corresponds to an object corresponding to the material of the measurement subject 2 and that corresponds to the distance between the measurement subject 2 and the receiving antenna 12.
G01N 22/00 - Recherche ou analyse des matériaux par l'utilisation de micro-ondes ou d'ondes radio, c. à d. d'ondes électromagnétiques d'une longueur d'onde d'un millimètre ou plus
Provided is a sensing sensor in which a crystal oscillator is used, wherein detection involving a broader and stable measurement dynamic range is performed. A spacer 9 is provided between an oscillation circuit that causes a crystal oscillator 5 to oscillate and a base body 20 that cools the oscillation circuit 62 to an ultra-low temperature, and a heater resistor 64 for heating the oscillation circuit 62 is provided to an oscillation circuit substrate 3. Therefore, the temperature of the oscillation circuit 62 can be set as low as possible without falling below the functional limitation temperature. The negative resistance of the oscillation circuit 62 can be increased, the measurement dynamic range can be broadened, and the crystal oscillator 5 can be caused to oscillate stably.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
[Problem] To provide a temperature detection device with which there is no break in temperature detection when detecting the temperature on the basis of a change in the oscillation frequency of a crystal piece. [Solution] First and second oscillation regions 40, 50 are formed in a crystal piece (14), and the first or second oscillation region 40, 50 is caused to oscillate with a 3x wave or a fundamental wave by the switching of switch units SW1-SW3. Then, respective frequency rates of change F2, F1 for the 3x wave and the fundamental wave in the first oscillation region are found by a data processing unit 6, and from the difference of such rates of change, the temperature is detected. In addition, whether the oscillation of the first oscillation region 40 is abnormal or not is monitored on the basis of the results of measuring the frequency of the first oscillation region 40, and when the oscillation is determined to be abnormal, the second oscillation region 50 is used to detect the temperature from the same difference (F2'-F1').
G01K 7/32 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant la variation de la fréquence de résonance d'un cristal
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/205 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant des résonateurs multiples
8.
SUBSTANCE DETECTION SYSTEM AND SUBSTANCE DETECTION METHOD
A substance detection system comprising: a reference crystal oscillator and a detection crystal oscillator formed on a single crystal substrate; an oscillation circuit module that sequentially oscillates the reference crystal oscillator and the detection crystal oscillator at a fundamental wave frequency and a third-harmonic wave frequency; a temperature identifying unit that identifies the surface temperature of the crystal substrate on the basis of a differential between a deviation of the fundamental wave frequency relative to a prescribed reference fundamental wave frequency of at least one of the reference crystal oscillator and detection crystal oscillator, and a deviation of the third-harmonic wave frequency relative to a prescribed reference third-harmonic wave frequency; and a substance identifying unit that, on the basis of the difference between the fundamental wave frequency of the reference crystal oscillator and the fundamental wave frequency of the detection crystal oscillator measured by a frequency measuring unit and on the basis of the temperature identified by the temperature identifying unit, identifies a temperature at which a contamination substance adhered to the detection crystal oscillator has detached therefrom and then identifies the contamination substance on the basis of the temperature at which the detachment occurred.
G01N 5/04 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en éliminant un constituant, p.ex. par évaporation, et en pesant le reste
The purpose of the present invention is to provide an oscillation device capable of outputting a frequency signal that accurately reflects the result of temperature adjustment by a heater circuit. An oscillation device 1A outputs a frequency signal of a preset frequency, a crystal oscillator 10a connected to an oscillation circuit 1 is housed in an oscillator cover 111, and the crystal oscillator 10a is disposed above a substrate 31 within a container 41 by soldering the oscillator cover 111 onto the substrate 31 within the container 41. A heater circuit 50 adjusts the temperature within the container 41 on the basis of a temperature detected by a temperature detection unit 53. In this case, the oscillator cover 111 housing the crystal oscillator 10a is formed from phosphorous deoxidized copper.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
Provided is a novel AT cut quartz piece in which unnecessary vibration other than vibration originating from an AT cut quartz vibrator can be suppressed, and the impedance of the vibrator improved, in comparison with the prior art. The two side surfaces that intersect with the Z’ quartz crystal axis are configured with three surfaces: a first surface 11a, which is the m surface of the quartz crystal; a second surface 11b, which meets with the first surface but is not the m surface; and a third surface, which meets with the second surface 11b, but is not the m surface. Also, the second surface 11b corresponds to a surface in which the main surface 11d of the AT cut quartz piece is rotated –74±3° about the X-axis of the quartz crystal as a rotation axis, and the third surface 11bc corresponds to a surface in which the main surface 11d is rotated –56±3° about the X-axis of the quartz crystal as a rotation axis.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
The present invention suppresses interference between wiring patterns in an oscillator that outputs multiple oscillation signals. An oscillator 1 is provided with: an IC 20 capable of outputting multiple oscillation signals using a crystal oscillator 10; and a substrate unit 31 connected to the IC 20. The substrate unit 31 has: an oscillator land 32a and an oscillator land 32e, which are electrically connected to the crystal oscillator 10; a power supply land 32c, which is electrically connected to a power supply; and a first output land 32b, which is positioned between the oscillator land 32a and the power supply land 32c, and which externally outputs a first oscillation signal from the IC 20. The wiring pattern 33b from the first output land 32b passes between the oscillator land 32a and the oscillator land 32e.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
The objective of the present invention is to provide a sensing sensor 2 and a sensing device with which it is possible to restrict a deterioration in measurement sensitivity, and to detect or quantify a sensing target. A supply solution flows from a filler opening 23 through a flow path 57 on one surface side of a crystal oscillator 4, to an effluent flow path 53, and a sensing target contained in the supply solution is adsorbed onto an adsorption film 48 provided on the crystal oscillator 4. Further, after rising through the effluent flow path 53 as a result of the hydraulic pressure of the supply solution introduced into the filler opening 23, the supply solution is absorbed by means of an outlet side capillary member 56. When the amount of supply solution on the filler opening side decreases, the hydraulic pressure decreases and it becomes difficult for the supply solution to rise through the effluent flow path 53, thereby forming a state in which the supply solution that is absorbed and pulled into the outlet side capillary member 56 is separated from the supply solution on the flow path 57 side. Thus, even if a buffer solution is supplied to the sensing sensor before the sample solution to be sensed is supplied as the supply solution, dilution of the sample solution as a result of inflow of the buffer solution can be restricted, and a deterioration in the measurement sensitivity can be suppressed.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
13.
GEIGER-MÜLLER COUNTER AND RADIATION MEASURING METER
The objective of the present invention is to provide a Geiger-Müller counter and a radiation measuring meter with which stable radiation measurement can be performed, and having a high β-ray measuring sensitivity. This Geiger-Müller counter (100) is provided with: an enclosed tube (110) having a hermetically sealed space; an anode (120) which is disposed inside the space and is formed in the shape of a flat plate; a cathode (130) which is formed in the shape of a flat plate and is disposed inside the space, parallel to the anode, a prescribed distance from the anode; and an inert gas and a quenching gas which are hermetically sealed inside the space.
Provided is a technique for measuring with high reliability when sensing an object to be sensed in a sample solution on the basis of frequency variations of a crystal resonator (4). A sensing method causes the object to be sensed to adhere to the crystal resonator (4) to measure the amount of an object to be sensed according to frequency variations based on the result of the addition of mass, wherein an oscillation frequency measurement is taken before the measurement region is set as a liquid phase and thereafter the sample solution is supplied to the measurement region. Thereafter, the liquid components in the measurement region are removed and the oscillation frequency is measured as a gas phase so as to measure the difference in frequency with the oscillation frequency before supplying the sample solution to the measurement region. Therefore, because the piezoelectric resonator oscillates in the gas phase, an error in the oscillation frequency or a reduction in the variation amount of the oscillation frequency caused by the crystal resonator (4) coming into contact with the liquid phase, is suppressed and the object to be sensed can be sensed with high accuracy.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
[Problem] To provide a crystal oscillator that can be fitted with a small and simple-structured support part without adversely affecting an oscillation characteristic, and that has an excellent frequency-temperature characteristic with a high degree of design flexibility. [Solution] Crystallographic X-axis, Y-axis, and Z-axis of a crystal are rotated by -65° to -50° about the X-axis and defined as an X'-axis, a Y'-axis, and a Z'-axis, respectively, and the X'-axis and the Z'-axis are rotated by 40° to 50° about the Y'-axis and defined as an X"-axis and a Z"-axis, respectively. With reference to a reference rectangle which is a rectangle having sides parallel to the X"-axis and the Z"-axis, the crystal oscillator uses a crystal plate 31 that has a shape obtained by expanding at least a pair of opposite sides of the reference rectangle toward the outside of the reference rectangle, and that has longitudinal oscillation modes in the X"-direction and the Z"-direction.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
Provided is a frequency synthesizer capable of high-speed switching and having few unwanted frequency components in the output frequency signal. In this frequency synthesizer (1), a direct digital synthesizer (DDS) (2) operating on the basis of a clock signal generates a reference frequency signal having a prescribed reference frequency, and clock signal supply units (41, 42) are switched to supply clock signals having a different clock frequency to the DDS (2). A storage unit (12) stores, in association with the output frequency (fVCO) from the frequency synthesizer (1), combinations of clock frequencies (fclk), reference frequencies (fc), and division numbers (N) for which spurious frequencies do not exist within a preset frequency range and the division number of a variable frequency divider (302) provided in a PLL circuit (3) is the smallest when the DDS (2) is operated by switching the clock signal. Setting units (11, 24) read the setting items stored in the storage unit (12), and perform settings in each unit.
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
17.
PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME
[Problem] To acquire a low-cost piezoelectric device with a simple configuration that allows mounting terminals to be formed at a desired position. [Solution] A piezoelectric device includes: lead-out wires (3) provided on the outer periphery of a piezoelectric substrate (1) and connected to interdigital electrodes (2) formed on a principal surface of the piezoelectric substrate (1); an outer surrounding wall layer (6) provided around the outer periphery of the piezoelectric substrate including the lead-out wires, said outer surrounding wall layer (6) forming a hollow part as an operation space for the interdigital electrodes; and a ceiling board (7) bridging the outer surrounding wall layer to seal the hollow part. The ceiling board (7) is composed of a heat resistant resin having a mechanical strength increased by a filler made of an inorganic material mixed therewith. The lead-out wires (3) are formed on a pair of opposing side surfaces of the outer surrounding wall layer. A metal plating layer is formed into a plurality of insulated segments over the pair of opposing side surfaces of the outer surrounding wall layer (6), the upper surface of the ceiling board (7) that is connected to the pair of opposing side surfaces of the outer surrounding wall layer (6), and the outer periphery of the piezoelectric substrate (1) that is connected to the pair of opposing side surfaces of the outer surrounding wall layer (6). The metal plating layer is electrically connected to the lead-out wire (3) on the outer periphery of a piezoelectric substrate (1). The metal plating layer on the upper surface of the ceiling board works as a mounting terminal (11) while the metal plating layer on the side surface of the outer surrounding wall layer works as a side wire (10) for connecting the lead-out wires and the mounting terminals.
H03H 9/25 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs utilisant des ondes acoustiques de surface
H03H 3/08 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux utilisant des ondes acoustiques de surface
Provided are a detection sensor and detection device with which the height of a supply space for a sample solution is lowered and the sensitivity of measurement of an object to be detected can be improved. In the present invention, to one surface side of a crystal oscillator 4 in which an adsorption film 46 for adsorbing an object to be detected is provided to an excitation electrode 42A, a flow path 57 going along the one surface side of the crystal oscillator 4 from one end side to the other end side is formed by causing an upper cover body 21 to press a flow path formation member 5. A recess 84 is provided to the flow path formation member 5 on the surface thereof opposite the flow path 57 at a position facing the flow path 57, and/or to a flow path formation member in a pressing member on the surface thereof opposite a flow path at a position facing the flow path 57. As a result, even if there is strain in the pressing member, deformation of the flow path 57 is suppressed when the flow path formation member 5 is pressed. A sample solution will therefore flow stably through the flow channel 57, thus improving the sensitivity of measurement.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
19.
PIEZOELECTRIC DEVICE, PIEZOELECTRIC DEVICE MANUFACTURING METHOD, AND ELECTRONIC COMPONENT
[Problem] To suppress generation of failure products by ensuring the strength of a ceiling material by maintaining the thickness of the ceiling material, and by reliably bonding a piezoelectric device and a mounting substrate to each other. [Solution] A piezoelectric device 10 has: an acoustic surface wave element 12 formed on a piezoelectric substrate 11; a rib material 13 bonded on the piezoelectric substrate 11 by surrounding the acoustic surface wave element 12; and a board-like ceiling material 14 bonded to the rib material 13 such that an opening O of the rib material 13 is covered with the ceiling material. The ceiling material 14 is formed such that an area S2 of a second surface 14b on the side opposite to the rib material 13 is smaller than an area S1 of a first surface 14a bonded to the rib material 13.
H03H 9/25 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs utilisant des ondes acoustiques de surface
H03H 3/08 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux utilisant des ondes acoustiques de surface
The present invention provides a neutral density filter having excellent wavelength flatness. The neutral density filter (100) comprises an optical substrate (110) and a light absorption film (120) formed on a surface of the optical substrate, wherein the light absorption film comprises first light absorption films (122, 126) which have an attenuation coefficient that becomes higher as the wavelength of transmitted light becomes longer and a second light absorption film (124) which has an attenuation coefficient that becomes lower as the wavelength of transmitted light becomes longer.
Provided is a technique for suppressing the aging of oscillation frequency and obtaining a stable oscillation output in an oscillation device using a piezoelectric oscillator. In an OCXO 1 for outputting an oscillation frequency by oscillating a crystal oscillator, the corresponding relationship between an oscillation frequency and an elapsed time is obtained in an initial time after a first crystal oscillator 11 starts to oscillate. Based on the obtained result, data according to the following corresponding relationship between the accumulated elapsed time of the oscillation after the start of the oscillation and the oscillation frequency is obtained. A frequency setting value is then corrected on the basis of the accumulated elapsed time of the oscillation and this data. The output frequency of the first crystal oscillator 11 varies with elapsed time, but is corrected by a frequency correction value according to the accumulated elapsed time, so that the oscillation frequency becomes stable.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 7/00 - Commande automatique de fréquence ou de phase; Synchronisation
The deceleration rate of a detection member is set such that, even if the ultrasonic wave sending and receiving unit is driven at full stroke, the total number of rotations of the detection member is set to be no more than a single rotation, and the initial driving position of the ultrasonic wave sending and receiving unit is determined by accurately detecting the origin position, which is a reference when controlling swinging of the ultrasonic wave sending and receiving unit. This ultrasonic probe is internally provided with an ultrasonic wave sending and receiving unit (100), and is also provided with a housing (21) in which an ultrasonic wave propagation liquid (22) is sealed, a drive device which transmits rotational drive force of a drive motor (1) to swing the aforementioned ultrasonic wave sending and receiving unit (100), and a detection device which detects the origin position, which is the reference when controlling swinging of the aforementioned ultrasonic wave sending and receiving unit (100); this ultrasonic probe is characterized in that the detection device removes rotation from an intermediary member through which the detection device transmits rotational drive force, slows the rotation and transmits the same to the detection member (14) of the detection device, and detects the origin (O) position by detecting rotation of the detection member (14) with a sensor (13).
To provide a technique with which it is possible, in an oscillation device, to minimize fluctuations in oscillation frequency caused by fluctuations in the voltage of a power supply unit of a heater. An oscillation device in which the temperature of an atmosphere in which a crystal oscillator for oscillation output is placed is detected by a temperature detector, the heater temperature is controlled on the basis of the detected temperature value, and the temperature is stabilized, wherein the oscillation device is provided with: a buffer amplifier inserted in a signal path of a control signal generated on the basis of the detected temperature value; a heater comprising a transistor in which a base is connected to an output end of the buffer amplifier, the heater being provided such that a collector and an emitter are positioned between a power supply unit and a ground; and a first differential amplifier provided to adjust the gain of the buffer amplifier so as to cancel out fluctuations in the voltage of the power supply unit, the first differential amplifier amplifying the difference between a voltage corresponding to the power supply voltage and a preset voltage, and inputting the amplified difference into a gain adjustment end of the buffer amplifier.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03K 5/08 - Mise en forme d'impulsions par limitation, par application d'un seuil, par découpage, c. à d. par application combinée d'une limitation et d'un seuil
H03L 7/08 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase
24.
PIEZOELECTRIC VIBRATING REED AND PIEZOELECTRIC DEVICE
The present invention achieves improved reliability and reduced manufacturing cost by simplifying a circuit by effectively suppressing sub vibration and thereby eliminating the need for a filter and the like for suppressing the sub vibration. A piezoelectric vibrating reed (10) comprises a vibrating reed body (11) having a vibrating part (12), and at least a pair of excitation electrodes (14, 15) formed, respectively, in a front surface (12a) and a back surface (12b) of the vibrating part (12). The vibrating reed body (11) is a two-fold rotation crystal vibrating reed that is cut out parallel to an X''Z'' plane that is rotated about a Z-axis among crystallographic axes of a crystal and further rotated about an X'-axis, and the pair of excitation electrodes (14, 15) are arranged in a Z'''-axis direction defined by an X''' axis that is rotated counterclockwise 260°-300° about a Y'' axis with reference to a +X'' direction, and are disposed obliquely with respect to a Y''-axis direction.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
25.
PIEZOELECTRIC VIBRATING REED AND PIEZOELECTRIC DEVICE
Provided are a piezoelectric vibrating reed and a piezoelectric device which when being mounted to a substrate by soldering, can avoid the erosion of solder to an excitation electrode. A piezoelectric vibrating reed (120) has a first principal surface and a second principal surface on the reverse side to the first principal surface, and comprises a vibration part (124), a frame part (122) which is apart from the vibration part and surrounds the vibration part, and a coupling part (126) which couples the vibration part and the frame part. Excitation electrodes (128) are respectively formed on the first principal surface and the second principal surface of the vibration part, and extraction electrodes (130) are extracted from the respective excitation electrodes to the second principal surface of the frame part. The extraction electrode formed on the second principal surface of the frame part is formed from a chromium (Cr) film (191A) formed in the lowest layer, a nickel tungsten (NiW) film (191B) formed on the surface of the chromium (Cr) film, a gold (Au) film (191C) formed on the surface of the nickel tungsten (NiW) film, and a chromium oxide (Cr2O3) film (191D) formed on the surface of the gold (Au) film.
H01L 23/10 - Conteneurs; Scellements caractérisés par le matériau ou par la disposition des scellements entre les parties, p.ex. entre le couvercle et la base ou entre les connexions et les parois du conteneur
26.
SURFACE-MOUNTED CRYSTAL RESONATOR, MANUFACTURING METHOD THEREFOR, AND OSCILLATOR
[Problem] To provide a surface-mounted crystal resonator, a manufacturing method therefor, and an oscillator which enable improved productivity by facilitating manufacturing, better quality, and smaller influence of noise from outside by placing a metal cover at a ground level. [Solution] The present invention provides a configuration in which in a connection terminal (2b) not connected to a crystal piece (5), a pattern is formed to protrude approximately toward the center of a base (1), an open portion in which an insulating film (10) is not formed on the connection terminal (2b) is formed for connection with a cover (6) by a conductive adhesive (11) in the pattern, and the cover (6) and the connection terminal (2b) are connected by the conductive adhesive (11) in the open portion. Even if solder creeps up from a through terminal (2c), the conductive adhesive (11) can be prevented from being melted by the solder and causing a conduction failure since the conductive adhesive (11) is formed in a place at a distance from the through terminal (2c) toward the center of the base (1).
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails
H01L 23/00 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
An objective of the present invention is to ensure precision of meshing of teeth, and to reduce occurrences of vibrations and noise, in reciprocal shaking of a probe main body. Provided is an ultrasound probe, in which either a coupling (2) between one end part of an output shaft (1a) of a motive power source (1) which shakes a probe main body and the probe main body, or a flywheel (3) on another end part of the output shaft (1b) of the motive power source (1), is loosely fitted so as to shake, and vibrations and noise from the probe main body are reduced.
A61B 8/12 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores dans des cavités ou des conduits du corps, p.ex. en utilisant des cathéters
F16D 3/68 - Accouplements extensibles, c. à d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement avec pièces d'accouplement reliées par un ou plusieurs organes intermédiaires comportant des éléments élastiques disposés entre les parois sensiblement radiales des deux pièces d'accouplement les éléments étant en caoutchouc ou faits d'un matériau similaire
28.
ULTRASONIC PROBE AND INJECTION MOLDING METHOD FOR SAME
In this ultrasonic probe, an ultrasonic receiver is disposed inside a housing (2), an ultrasonic transmitting medium is enclosed inside the housing (2), and a drive device that oscillates the ultrasonic receiver is provided, and the housing (2) is the molded article of an injection molded plastic material and is characterized by being injected molded such that: the shape is a container shape that includes an opening (26) in one direction, and comprises a bottom surface part (22) through which ultrasonic waves are transmitted, and an edge part (21) which is engaged with a probe body; the thickness of the edge part (21) is thicker than that of the bottom surface part (22), and part of the edge part (21) is provided with a vertical groove (24) that is parallel to the mold-removal direction of a mold; and the edge part (21) is provided with a gate (G) that is separate from the vertical groove (24) and into which a molten resin is flown.
Provided is an OCXO having a high degree of stability regarding output frequency. An oscillator (1A) that is an OCXO, wherein crystal-oscillating elements (10, 20), oscillating circuits (1, 2), a temperature detecting unit (53), and a heater circuit (50) are provided to the inside of a first container (41) supported floating inside a second container (42), and a voltage-stabilizing circuit (6) for stabilizing the voltage of a power source supplied to the heater circuit (50) is provided inside the second container (42) set apart from the first container (41). Accordingly, the voltage of the power source supplied to the heater circuit (50) is stabilized, and the voltage-stabilizing circuit (6) is not susceptible to the effects of heat generated from the heater circuit (50). This yields a stable output oscillation frequency regardless of the environment temperature.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03L 1/02 - Stabilisation du signal de sortie du générateur contre les variations de valeurs physiques, p.ex. de l'alimentation en énergie contre les variations de température uniquement
An ultrasonic probe having: an ultrasonic transmission and reception unit (20) provided inside housing (30, 50); and a drive device provided therein that encases a main sound transmission medium and swings the ultrasonic transmission and reception unit (20). The ultrasonic probe is characterized by: the drive device being a drive transmission mechanism that converts the rotation of a drive motor (1) to swinging of the ultrasonic transmission and reception unit (20); all or part of the drive transmission mechanism comprising a gear mechanism; and preventing backlash in a meshing section of at least a pair of gears (8, 9) in the gear mechanism, by elastically impelling and pressing one pair of gears (9) on to the other pair of gears (8) by using compression springs (11, 102).
[Problem] To provide a voltage controlled oscillator the output frequency of which can be controlled with high accuracy. [Solution] An oscillator is configured to comprise a former-stage side voltage divider, a latter-stage side voltage divider, and an oscillation unit. The former-stage side voltage divider includes: a first resistor connected between a first potential source and a second potential source; and a first output terminal, an output voltage to be derived from the first output terminal being variable because the position of connection of the first output terminal to the first resistor is made variable. The latter-stage side voltage divider includes: a second resistor connected between the first output terminal and a third potential source; and a second output terminal, an output voltage to be derived from the second output terminal being variable because the position of connection of the second output terminal to the second resistor is made variable. The oscillation unit includes a variable capacitance element the capacitance of which varies in accordance with the output voltage from the second output terminal, and the output frequency of the oscillation unit varies on the basis of the variation of the resonance point depending on the variation of the capacitance. This configuration can cause the resonance point to finely vary at multiple levels, thereby controlling the output frequency with high accuracy.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
[Problem] To reduce spurious output of a DDS. [Solution] Providing an addition unit (5) for adding random noise to a digital signal outputted from a waveform data memory (2). A circuit for generating PN sequential data is used in a random noise generation unit (3), which is provided with a circuit for performing a data process so that digital values that constitute the noise are set to "-1" and "1." This data process prevents an offset (0.5) from being generated in the output value of the noise. A filter (4) is composed, for example, of a plurality of serially connected moving-averaging circuits, the filter (4) performs a process so that the signal level of the frequency spectrum of the random noise is biased toward a frequency band that deviates from the DDS setting frequency. The random noise outputted from the filter (4) is inputted to the addition unit (5).
H03B 28/00 - Génération d'oscillations par des procédés non couverts par les groupes , y compris la modification de la forme d'onde afin de produire des oscillations sinusoïdales
An objective of the present invention is to provide an oven-controlled crystal oscillator whereby it is possible to reduce the impact of heat from outside and further stabilize an output frequency. Provided is an oven-controlled crystal oscillator wherein a substrate (11) is anchored upon a base (16), said oven-controlled crystal oscillator comprising: an oscillation circuit (12), a heater resistor (13), and a power transistor (14), which are mounted on the substrate (11); pins (15) which anchor the substrate (11) to the base (16) at a prescribed distance; a metal cover (17) which covers the oscillation circuit (12), the heater resistor (13), and the power transistor (14); and a resin cover (18) which covers the exterior side of the metal cover (17). An air layer is formed between the metal cover (17) and the resin cover (18).
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
34.
QUARTZ OSCILLATOR AND METHOD FOR MANUFACTURING QUARTZ OSCILLATOR
A quartz oscillator (1) is provided with: a first oscillation circuit (13) which oscillates a quartz resonator (12) at a first frequency; a first impedance adjustment circuit (17) which adjusts the impedance of a first oscillation system having the quartz resonator (12) and the first oscillation circuit (13); a second oscillation circuit (14) which oscillates the quartz resonator (12) at a second frequency different from the first frequency; a second impedance adjustment circuit (18) which adjusts the impedance of a second oscillation system having the quartz resonator (12) and the second oscillation circuit (14); and a control circuit (19) which controls the first impedance adjustment circuit (17) and the second impedance adjustment circuit (18).
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
35.
PIEZOELECTRIC DEVICE PACKAGE AND PIEZOELECTRIC DEVICE
In the present invention, when installing a piezoelectric oscillation piece in a main package body, the spread of adhesive to an oscillation unit is mitigated by restricting the direction in which the adhesive spreads along the rear surface of the piezoelectric oscillation piece, and the CI value of the piezoelectric oscillation piece is prevented from worsening. A piezoelectric device package (10) has a main package body (10a) for holding the piezoelectric oscillation piece (50), and connective electrodes (23, 24) which are electrically connected to excitation electrodes (53, 54) formed on the piezoelectric oscillation piece (50) are provided in the main package body (10a). The connective electrodes (23, 24) are provided with cutouts (25, 26) formed in the oscillation part (51) side of the piezoelectric oscillation piece (50) held in the main package body (10a).
H01L 23/12 - Supports, p.ex. substrats isolants non amovibles
H01L 23/08 - Conteneurs; Scellements caractérisés par le matériau du conteneur ou par ses propriétés électriques le matériau étant un isolant électrique, p.ex. du verre
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails
In order to provide complete removal of a sacrificial layer on a disk lower surface during etching, without leaving residue, an electrostatic drive-type disk-type vibrator comprises: a disk-type vibrator structure (1); a pair of drive electrodes (2, 2) at a prescribed gap (g) from the peripheral section of the disk-type vibrator structure and arranged on both sides of the vibrator structure (1) so as to face each other; a means for applying alternating current bias voltages of the same phase to the drive electrodes (2, 2); and a detection means that obtains an output corresponding to the capacitance between the disk-type vibrator structure (1) and the drive electrodes (2, 2). The disk-type vibrator structure (1) has a through hole (1a) in the center of the disk and vibrates in a wine-glass mode.
H03H 9/24 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs en matériau qui n'est ni piézo-électrique, ni électrostrictif, ni magnétostrictif
B81B 3/00 - Dispositifs comportant des éléments flexibles ou déformables, p.ex. comportant des membranes ou des lamelles élastiques
H03H 3/007 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques
In order to reduce variation in resonance frequency caused by variation in the precision of dimensions for a supporting structure of a vibrator, the present invention provides an electrostatic drive-type disk-type MEMS vibrator comprising: a disk-type vibrator body (1); a pair of drive electrodes (2, 2) at a prescribed gap (g) from the peripheral section of the disk-type vibrator and arranged on both sides of the vibrator body (1) so as to face each other; a means (2a) for applying alternating current bias voltages of the same phase to the drive electrodes (2, 2); and detection means (3, 3a) that obtain outputs corresponding to the capacitance between the disk-type vibrator body (1) and the drive electrodes (2, 2); and characterized by the disk-type vibrator body (1) therein being supported by a columnar supporting structure (1a) disposed perpendicularly in the center of the disk and the cross-sectional shape of the supporting structure (1a) being non-circular.
H03H 9/24 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs en matériau qui n'est ni piézo-électrique, ni électrostrictif, ni magnétostrictif
H03H 3/007 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques
38.
OSCILLATOR ELECTRODE MATERIAL HAVING EXCELLENT AGING CHARACTERISTICS, PIEZOELECTRIC OSCILLATOR USING THE MATERIAL AND SPUTTERING TARGET COMPRISING THE MATERIAL
Provided is an electrode material which enables the production of an oscillator while reducing variation and achieving good aging characteristics, compared with the case of using Au, and which is less expensive than Au. The oscillator electrode material, which comprises a three-component alloy consisting of Au and two other kinds of metals (M1, M2), is to be used as an excitation electrode for exciting oscillation of a piezoelectric element, wherein said two kinds of metals (M1, M2) are: (a) a metal (M1) which shows a tendency of decreasing the frequency aging characteristics (Δf1/f1) of the piezoelectric oscillator from a standard value (f1); and (b) another metal (M2) which shows a tendency of increasing the frequency aging characteristics (Δf1/f1) of the piezoelectric oscillator from the standard value (f1). It is preferred that the metal (M1) is Ag, Al or Ni and the metal (M2) is Pd, Ru, Pt, Ir, Rh or Cu.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
Provided is a surface mount crystal oscillator capable of suppressing chronological change of a frequency property. A surface mount crystal oscillator (1) comprises a crystal plate (2) with a frame wherein an oscillating unit (6) is provided, on its opposite main surfaces, with first and second excitation electrodes (5a, 5b), and surrounded by a frame (7), and the oscillating unit (6) and the frame (7) are connected by connecting portions (8a, 8b); a base (3); and a cover (4). A main surface, which faces the base (3), of the frame (7) is divided at two portions in the circumferential direction of the frame (7) to define two areas, and a first metal film (17) is formed on one of the two areas and a second metal film (18) is formed on the other area. The first metal film (17) is electrically connected to the first excitation electrode (5a), and the second metal film (18) is electrically connected to the second excitation electrode (5b). The frame (7) and the base (3) are connected by a sealing material (20) formed on the surfaces of the first metal film (17) and the second metal film (18). A gap area (19) between the first metal film (17) and the second film (18) is embedded with glass (21) in which the oscillating unit (6) is hermetically sealed.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
Provided is a technique capable of instantaneously or previously determining a state in which PLL control does not normally operate in a frequency synthesizer which subjects the frequency signals from a voltage control oscillation section to frequency-division, A/D conversion, and orthogonal detection, retrieves a rotation vector rotating at the frequency difference between a frequency signal used for the detection and a frequency signal subjected to the A/D conversion, and integrates the difference between the frequency of the rotation vector and a set frequency to obtain the control voltage of the voltage control oscillation section. The control voltage inputted to the voltage control oscillation section is monitored, and whether or not the level of the monitored control voltage is out of a predetermined set range is determined to output an unlock detection signal. In a configuration in which the rotation vector is multiplied by a reverse rotation vector rotating reversely at a frequency determined in a rough-cut manner in accordance with the set frequency to slow down the rotation vector, the result of the determination of whether or not the length (scalar quantity) of the slowed down rotation vector or a correction signal for gain control is out of a predetermined set range is further considered.
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03L 7/095 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant un détecteur de verrouillage
41.
PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME
A piezoelectric device has excellent bonding by using solder and excellent electrical continuity by forming an external electrode layer so as to cover a sealing material after tightly sealing a through hole with a sealing material. In a piezoelectric device (100), a lid (10), a piezoelectric plate (20) which includes a piezoelectric oscillation piece having an oscillation electrode formed thereon and an extraction electrode, and a base (40) having a through hole (TH) are connected. The base is provided with: connecting electrodes (42, 44) which are connected to the extraction electrode on the piezoelectric plate side; a through hole electrode (15) which is electrically connected to the connecting electrode and is formed in the through hole; a first external electrode layer (50) which is electrically connected to the through hole electrode and is formed on the opposite surface to the piezoelectric plate; a sealing material (70) which seals the through hole electrode; and a second external electrode layer (50a) which is formed to cover the first external electrode layer (50) and the sealing material (70).
H01L 23/08 - Conteneurs; Scellements caractérisés par le matériau du conteneur ou par ses propriétés électriques le matériau étant un isolant électrique, p.ex. du verre
H01L 23/10 - Conteneurs; Scellements caractérisés par le matériau ou par la disposition des scellements entre les parties, p.ex. entre le couvercle et la base ou entre les connexions et les parois du conteneur
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
Disclosed is a piezoelectric sensor with the enhancement of detectability. A piezoelectric sensor is provided with electrodes of gold layers formed on one surface and the other surface of a piezoelectric piece through close contact layers by sputtering, respectively, and a sucking layer made of an antibody arranged on the front surface of the electrode on the one surface side, wherein the electrode on the other side is arranged to face an air tight space, so as to detect an antigen sucked on the antibody in accordance with a change in frequency of the piezoelectric piece. The piezoelectric sensor is further provided with an electrically conductive path for connecting the electrode and an oscillating circuit, and an electrically conductive adhesive arranged to mount from the electrode to the electrically conductive path for fixing the electrode on the electrically conductive path, wherein a binder of the electrically conductive adhesive is hardened in a condition for an electrically conductive filler to join the gold layer and the thickness of the gold layer is set to be equal to or more than 3000 Å.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
G01N 33/543 - Tests immunologiques; Tests faisant intervenir la formation de liaisons biospécifiques; Matériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
H01L 41/08 - Eléments piézo-électriques ou électrostrictifs
H01L 41/18 - Emploi de matériaux spécifiés pour des éléments piézo-électriques ou électrostrictifs
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
Provided are a piezoelectric oscillator, the frequency stability of which is high, and a detecting sensor using the piezoelectric oscillator. The piezoelectric oscillator (1) comprises a first oscillation area (105) which is provided, on a piezoelectric piece (100) in order to extract a first oscillating frequency; and a second oscillation area is provided in an area (106) different from the first oscillation area (105), with an elastic boundary area (107) therebetween, in order to extract a second oscillating frequency. In the oscillation areas (105, 106), excitation electrodes (101 to 103) are formed on the two sides of the piezoelectric piece (100) so as to sandwich the piezoelectric piece (100) therebetween. The frequency difference between the first oscillating frequency and the second oscillating frequency is 0.2% or more but not more than 2.2% of the oscillating frequencies.
H03H 9/17 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
H03H 9/205 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant des résonateurs multiples
44.
ALCOHOL DETECTION DEVICE AND VEHICLE PROVIDED WITH THE ALCOHOL DETECTION DEVICE
An alcohol detection device which is provided on a vehicle and precisely detects alcohol contained in the breath of a driver. The alcohol detection device is provided with a crystal oscillator and a data creation means for verifying. The crystal oscillator is provided with an acohol-detecting oscillation area which has an alcohol-adsorption layer formed on the surface thereof and has the natural frequency thereof varied due to the adsorption of alcohol to the alcohol-adsorption layer, and a reference oscillation area which is provided in an area different from the detecting oscillation area and is a non-alcohol-adsorption area. The data creation means for verifying comprises a means which creates, on the basis of a frequency corresponding to an oscillation output from the detecting oscillation area and a frequency corresponding to an oscillation output from the reference oscillation area, time-series data relating to the difference value between the frequencies; and a means for removing pulsating flow portions contained in the time-series data with the portions regarded as noise. Therefore, variations in frequency due to alcohol are defined.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
B60K 28/06 - Dispositifs de sécurité pour la commande des ensembles de propulsion spécialement adaptés aux véhicules ou aménagés dans ceux-ci, p.ex. empêchant l'alimentation en carburant ou l'allumage en cas de danger sensibles à des conditions relatives au conducteur sensibles à l'incapacité du conducteur
Provided is a small-size and highly stable oscillator which can easily correct a frequency shift caused by a temperature fluctuation. The oscillator includes: an overtone crystal unit (11) of three or higher dimension; an oscillation circuit (12) which is connected to the crystal unit (11) and outputs an oscillation frequency; a divider (13) which divides the oscillation frequency and outputs the divided frequencies to a system device processing unit (2); a temperature sensor (16) which detects a temperature around the crystal unit (11); and a memory (17) which stores information for correcting a frequency shift of an oscillation frequency according to the temperature characteristic of the crystal unit (a coefficient of an equation for calculating a correction amount of a frequency shift or the frequency shift corresponding to the temperature) and provides information to be used for correcting the frequency shift to the system device processing unit (2).
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
Provided is a small-sized duplexer with a good isolation characteristic. The duplexer provided with a high-frequency-side filter (4) and a low-frequency-side filter (3) composed of ladder filters on a common piezoelectric substrate (11) is provided with a first elastic wave resonator (31a) included in one of the filters, a second elastic wave resonator (42c) included in the other thereof, and a first additional grating reflector (86a) for reflecting an elastic wave leaking from a grating reflector of the first elastic wave resonator (31a), which is provided between the resonators (31a, 42c). No additional grating reflector is provided on the opposite side of the first elastic wave resonator (31a) from the second elastic wave resonator (42c).
Provided is a frequency synthesizer for which a frequency can be set finely in a wide band and which has a wide frequency acquisition range. A PLL performs a quadrature detection for a sinusoidal signal having the output frequency of a voltage controlled oscillation section and uses a vector which rotates at a differential frequency (velocity) between the output frequency and the frequency of a frequency signal used for the quadrature detection. When the control voltage from the PLL to the voltage controlled oscillation section is larger than a range set in advance, a frequency acquisition means integrates a first constant for increasing the output frequency as a voltage for acquisition, and when the control voltage is smaller than the set range, the frequency acquisition means integrates a second constant for decreasing the output frequency as a voltage for acquisition. An adding means adds up the control voltage from the PLL and the voltage for acquisition which is obtained from the frequency acquisition means and outputs the addition result to the voltage controlled oscillation section.
H03L 7/085 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
48.
FILTER, PORTABLE TERMINAL, AND ELECTRONIC COMPONENT
Sharp and high attenuation in the attenuation reneges close to each other outside the TV radio wave band and to provide a filter capable of suppressing the number of inductors used and contributing to miniaturization of a device. A plurality of elastic wave resonators connected in the form of parallel arms for forming a plurality of attenuation ranges are connected to the same-potential points of a signal path without any inductor. Alternatively, series circuits of a plurality of element sections which cause series resonance are connected to the signal path as the parallel arms. Thus, high attenuation can be achieved in each of the attenuation ranges. However, ranges equivalent to, as it were, zero points exist between the adjacent poles. However, even if the zero points exist, a characteristic of sharply attenuating both sides of each zero point can be achieved. Pairs of the elastic wave resonators (pairs of resonators) connected to the same potential points or the parallel arms consisting of the series circuits are connected to the signal path and inductors for inverting the phases are interposed between the arms.
An oscillation frequency control circuit for correcting its frequency, keeping the oscillation frequency stable when self-oscillating, and oscillating with a control voltage generated by making a fixed voltage given from outside variable. The oscillation frequency control circuit comprises a voltage-controlled oscillator (15), a divider (16), a phase comparator (12), a loop filter (14), a detecting circuit (17), a PWM circuit (22), a memory (21), a control voltage varying circuit (26), a selection switch (13) for connecting/disconnecting the phase comparator (12) and the loop filter (14) and selecting/outputting a control voltage from the control voltage varying circuit (26), and a CPU (20). The CPU selects/outputs the control voltage preferentially according to the command of the control voltage selection. If the command is not given and the level of the outside reference signal detected by the detecting circuit (17) is within an adequate range, it turns the selection switch (13) on. If the command is not given and the level of the outside reference signal is out of the adequate range, it turns the selection switch (13) off and outputs information about pulse generation stored in the memory (21) to the PWM circuit (22).
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
H03L 7/095 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant un détecteur de verrouillage
H03L 7/10 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer la synchronisation initiale ou pour élargir le domaine d'accrochage
To provide a highly stable oscillation frequency control circuit wherein the frequency thereof is corrected, an adequate range of the input levels of external reference signals is determined in accordance with temperature characteristics in detecting the external reference signals and wherein the controlled voltage of a voltage controlled oscillator is controlled within and outside the adequate range. An oscillation frequency control circuit comprises a voltage controlled oscillator (15), a frequency divider (16), a phase comparator (12), a loop filter (14), a detector circuit (17), a temperature sensor (22), a fixed voltage supplying circuit (23), a selection switch (13) that connects the phase comparator (12) to the loop filter (14) in an external reference synchronization mode and that connects the fixed voltage supplying circuit (23) to the loop filter (14) in a fixed voltage mode, and a CPU (20) that switches the selection switch (13) to the external reference synchronization mode if the detected voltage of an external reference signal level detected by the detector circuit (17) is within the adequate range in accordance with the temperature characteristic of a temperature detected by the temperature sensor (22) and that switches the selection switch (13) to the fixed voltage mode if that detected voltage is outside the adequate range.
H03L 7/10 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer la synchronisation initiale ou pour élargir le domaine d'accrochage
H03L 7/095 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant un détecteur de verrouillage
51.
CRYSTAL DEVICE AND METHOD FOR MANUFACTURING CRYSTAL DEVICE
[PROBLEMS] To provide a crystal device where a lid and a base are formed entirely of crystal and bonded by siloxane bond (Si-O-Si). [MEANS FOR SOLVING PROBLEMS] A crystal device (100) comprises a crystal frame (50), which is made of crystal and has a crystal oscillation piece with an electrode pattern and an outer frame (51) for supporting the crystal oscillation piece; and a crystal base (40), which is made of crystal and has a connection electrode formed on the first surface and an external electrode formed on the second surface on the side opposite to the first surface and is conductive to the connection electrode. The connection electrode (42) is brought into contact with the electrode pattern (33) and the outer frame (51) is not brought into contact with the crystal base (40) when the crystal frame and the crystal base are superimposed and bonded.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A tuning fork-type crystal oscillator having an improved frequency adjusting accuracy and a method for adjusting its frequency. The tuning fork-type crystal oscillator having a tuning fork-like crystal piece (3) in which a pair of tuning fork tins (2a, 2b) extend out from a tuning fork base (1) and its frequency tuning method, comprising a first frequency adjusting step for adjusting a resonance frequency by forming inclined surfaces spanning from outer peripheral surfaces around the pair of tuning fork tines (2a, 2b) to top end surfaces (8a, 8b) by a femtosecond laser irradiated in a direction from the outer peripheral surfaces toward the top end surfaces or in a direction from the top end surfaces toward the outer peripheral surfaces.
H03H 3/04 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs pour obtenir une fréquence ou un coefficient de température désiré
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A surface mounting crystal oscillator is provided with a container main body having first and second recessed sections on the both main surfaces, respectively, a crystal piece hermetically sealed in the first recessed section, and an IC chip, which is provided with an integrated oscillation circuit using the crystal piece and is stored in the second recessed section. The IC chip is provided with a plurality of IC terminals, including a pair of crystal terminals for connecting with the crystal piece. On the bottom surface of the second recessed section, a plurality of mounting electrodes are formed corresponding to the IC terminals which are connected to the mounting electrodes by flip-chip bonding. The mounting electrodes that correspond to the pair of crystal terminals are electrically connected to the crystal piece and are formed as a pair of dual-purpose electrodes having areas larger than those of other mounting electrodes.
H03B 5/32 - Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée l'élément déterminant la fréquence étant un résonateur électromécanique un résonateur piézo-électrique
A frequency synthesizer can accurately set a frequency over a wide band and also obtain a low noise frequency signal by adopting a new principle. Specifically, the frequency synthesizer quadrature-detects a sinusoidal signal of an output frequency of a voltage control oscillating section, generates a rotation vector that rotates at the frequency (speed) corresponding to the difference from the frequency of the frequency signal used for the detection, calculates in advance the frequency of the rotation vector when the output frequency of the voltage control oscillating section reaches a set value, integrates the voltage signal equivalent to the difference between the frequency of the rotation vector and the calculated frequency when the voltage control oscillating section is driven, and feeds it back to the voltage control oscillating section to form a PLL so that the difference reaches zero. Thus, when the PLL is locked, the output frequency of the voltage control oscillating section is adjusted to the set frequency.
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
Intended is to provide a sensing device capable of displaying the changing data of a frequency due to the adsorption of an adsorption object at each concentration easily as a whole, while being justified at the adsorption starting point, on the basis of such time-series data of the frequency of a piezoelectric vibrator as is obtained in each concentration of the adsorption object in a liquid. The sensing device is constituted mainly of means for setting the adsorption starting points of the adsorption object in the time-series data, and an editing unit for synthesizing and displaying at least a frequency change region in the time-series data, while being justified at the adsorption starting points of the adsorption object. The means for setting the adsorption starting points of the adsorption object performs its setting, such that the operator adjusts a pointer to the time-series data displayed in a display unit and clicks the pointer, or such that an adsorption stating signal is outputted when the fluid is fed to a sensing sensor.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
A high-frequency voltage-controlled oscillation circuit which does not oscillate abnormally, is improved in phase noise, and has a small circuit scale. A phase shift circuit composed of third or more order odd &pgr; low-pass filter and capacitive variable-reactance elements (D1, D2) connected to the input and output of the low-pass filter in series respectively is inserted in a feedback loop of a transistor (Q) of an oscillation amplifier circuit. The low-pass filter is composed of an inductive reactance element (L3) connected to the feedback loop in series and capacitive variable-reactance elements (D4, D5) parallel connected to the input and output of the inductive reactance element (L3). The inductive reactance element (L3) is a C-shaped, a donut-shaped, or a U-shaped microstrip line. Thus, a high-frequency voltage-controlled oscillation circuit is realized.
Provided is a package type piezoelectric vibrator which is capable of being packaged at a wafer level and is suitable for mass production. The package type crystalline vibrator has a structure wherein an extraction electrode exists by having an extraction electrode adhered between a step surface and a lower surface of a frame section of a piezoelectric substrate when a base body is bonded on a lower surface side of the piezoelectric substrate, and a space of a recessed section of the base body is hermetically sealed. Therefore, the piezoelectric substrate can be hermetically sealed easily and the manufacture process is prevented from being complicated, only by bonding a case body on the upper surface side of the piezoelectric substrate and bonding the base body on the lower surface side of the dielectric substrate.
H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails
H01L 23/04 - Conteneurs; Scellements caractérisés par la forme
H01L 41/09 - Eléments piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique
H01L 41/18 - Emploi de matériaux spécifiés pour des éléments piézo-électriques ou électrostrictifs
H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
A signal processing unit and a wireless communication device are provided for making it possible to improve detecting sensitivity in correlation peak detection processing. The signal processing unit and the wireless communication device are comprised of a carrier data generating unit (16); a carrier demodulating unit (15); a matched filter unit (19) that carries out reverse diffusion processing and full addition processing as partial correlation processing for carrier demodulated data, and outputs correlation detected data; a correlation peak detecting unit (22) that detects a correlation peak from the correlation detected data and outputs correlation peak position information; a coarse frequency deviation detecting unit (23) that detects a frequency component in accordance with a carrier frequency deviation amount with respect to the carrier demodulated data and outputs a frequency deviation amount to the carrier data generating unit (16); a fine frequency detecting unit (24) that outputs a fine frequency deviation amount to reduce the frequency deviation amount from the correlation detected data and the correlation peak position information to the carrier data generating unit (16); and a control unit (25) that inputs the correlation peak position information and adjusts a processing clock signal.
In a crystal oscillator, a crystal piece is stored in a container main body composed of a bottom wall layer and a frame wall layer, and a metal cover is bonded to the container main body by a eutectic alloy. The crystal piece is held by a pair of crystal connecting terminals formed at a position to be an inner bottom surface of a container main body on one end side of the container main body. A grounding external terminal is arranged at one corner of the outer bottom surface of the container main body at the other end side of the container main body. To connect the metal cover to the grounding external terminal, a first conduction metal film electrically connected to the metal cover through a metal end surface film on an inner wall side surface of the frame wall layer is formed on a lower surface of the frame wall layer, and a second conduction metal film electrically connected to the grounding external terminal through a metal end surface film on a container main body outer side surface is formed on an upper surface of the bottom wall layer, corresponding to the positions where the grounding external terminals are formed.
A signal processing unit and a wireless communication device are provided for making it possible to detect a frequency by means of a small scale operation circuit in a short time in the case of correlation detection. The signal processing unit and the wireless communication device are comprised of a carrier data generating unit (16); a carrier demodulating unit (15); a matched filter unit (19) that divides carrier demodulated data into a plurality of portions, carries out reverse diffusion processing and accumulating operation processing as partial correlation processing, further carries out full addition processing for the partial correlation processing result, and outputs correlation detected data; a correlation peak detecting unit (22) that detects a correlation peak from the correlation detected data and outputs correlation peak position information; a coarse frequency deviation detecting unit (23) that outputs a frequency deviation amount with respect to the carrier demodulated data to the carrier data generating unit (16); and a fine frequency detecting unit (24) that outputs a fine frequency deviation amount from the correlation detected data and the correlation peak position information to the carrier data generating unit (16).
H04B 1/7087 - Aspects de la synchronisation de la porteuse
H04B 1/7093 - Structure du corrélateur du type à filtre adapté
H04B 7/26 - Systèmes de transmission radio, c. à d. utilisant un champ de rayonnement pour communication entre plusieurs postes dont au moins un est mobile
A wireless communication device is provided for making it possible to properly and efficiently carry out correlation peak detection processing in intermittent reception of a receiving unit. In the case where a correlation peak is not detected in a first period in which a correlation peak detecting unit (22) detects the correlation peak at a default frequency and a first frequency is detected in a detecting period of a coarse frequency deviation detecting unit (23) in the first period, a control unit (25) makes the correlation peak detecting unit (22) carry out the peak detection at the first frequency in a second period following the first period. In the case where the correlation peak is detected in the correlation peak detecting unit (22) and a second frequency is detected in a detecting period of a fine frequency deviation detecting unit (24) in the first period, the control unit (25) makes the correlation peak detecting unit (22) carry out the peak detection at the first and second frequencies in a third period following the second period.
In a sensor using a piezoelectric oscillator such as a quartz oscillator whose natural frequency is varied by adhesion of a detection object in a liquid with which the sensor is brought into contact, it is possible to suppress adverse affect accompanying increase of the detection accuracy of the frequency change. The sensor includes: an oscillation circuit for supplying an oscillation drive power to a piezoelectric oscillator so as to oscillate the piezoelectric oscillator with a drive current 0.3 mA or below; and a measurement unit for measuring the concentration of the detection object according to the oscillation output of the oscillation circuit. With this configuration, it is possible to suppress self-heating of the piezoelectric oscillator. This suppresses fluctuations of the oscillation frequency of the piezoelectric oscillator. As a result, it is possible to accurately detect a change of the frequency caused by adhesion of the detection object.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
Provided is an oscillation frequency control circuit, which corrects its own frequency so that it can hold an oscillation frequency stably even when it does not have an input of a highly stable reference signal but makes a self-run. The oscillation frequency control circuit comprises a voltage-controlled oscillator (15), a frequency divider (16), a phase comparator (12), a loop filter (14), a detecting circuit (17) for detecting an external reference signal, a PWM circuit (22) for generating pulses, when pulse generating information inputs, to output the pulses to the loop filter (14), a memory (21) for storing the pulse generating information corresponding to voltage information, a switch (13) for turning ON/OFF the connection between the phase comparator (12) and the loop filter (14), and a CPU (20) for turning ON the switch (13), if the level of the external reference signal detected by the detecting circuit (17) is within a proper range, but OFF the switch (13), if the level is outside of the proper range, thereby to output the pulse generating information stored in the memory (21), to the PWM circuit (22).
H03L 7/14 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer une fréquence constante quand la tension d'alimentation ou la tension de correction fait défaut
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
H03L 7/095 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant un détecteur de verrouillage
To provide a synthesizer module that can be used not only in a destination area but also in the whole world and that can be readily set in output frequency. In the synthesizer module, a calculation formula table of a nonvolatile memory (12) stores a plurality of frequency modes and the calculation formula of carrier frequencies corresponding to those frequency modes, and further stores, in its certain area, a frequency mode set during an initial setting of the device. A CPU 10, when receiving a channel number from a rotary SW (10) during a frequency setting, calculates, based on a calculation formula corresponding to a currently set frequency mode, a carrier frequency corresponding to the channel number. This carrier frequency is set to a CONT (2) of a PLL part.
H03J 5/02 - Accord discontinu; Sélection de fréquences prédéterminées; Sélection de bandes de fréquences avec ou sans accord continu dans une ou plusieurs des bandes, p.ex. accord par bouton-poussoir, dispositif d'accord à barillet avec élément d'accord réglable comportant un certain nombre de positions prédéterminées et ajustable sur l'une quelconque de ces positions
H03L 7/183 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle une différence de temps étant utilisée pour verrouiller la boucle, le compteur entre des nombres fixes ou le diviseur de fréquence divisant par un nombre fixe
An electronic component surface mounted on a wiring board by soldering, in which occurrence of cracking in the solder is suppressed after surface mounting. The electronic component comprises a ceramic member constituting at least a part of a container, and an external terminal provided on the outer surface of the member and used when the electronic component is surface mounted on the wiring board by a solder. Assuming the coefficient of thermal expansion of ceramic constituting the member is α1 and the combined coefficient of expansion of the member and the external terminal is αk, the thickness of a layer constituting the external terminal is designed to satisfy the following relation: 1.029≤αk/α1≤1.216. Preferably, the external terminal has a nickel layer as an electrode main body.
A sensing device comprising a sensor which has an absorbing layer formed on the surface of the sensor to adsorb an object to be sensed and a sensing piezoelectric vibrator having a natural frequency variable when the object is adsorbed. The deterioration of the measurement accuracy due to variation of the frequency of the piezoelectric vibrator because of a factor other than the adsorption of the object is prevented. The sensing device comprises a reference sensor having a reference piezoelectric vibrator to which an object to be sensed is not adsorbed, a reference oscillating circuit for oscillating the reference piezoelectric vibrator, a measuring section for receiving the oscillation output of a sensing oscillation circuit and the oscillation output of the reference oscillation circuit in time series and measuring the frequencies of the oscillation outputs of the oscillation circuits, and data creating means for creating time-series data on the difference between the frequency of the sensor and that of the reference sensor according to the measured frequencies of the oscillation outputs of the oscillation circuits. Therefore, the frequency variation due to a factor other than the adsorption of the object is cancelled.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
H01L 41/08 - Eléments piézo-électriques ou électrostrictifs
H01L 41/18 - Emploi de matériaux spécifiés pour des éléments piézo-électriques ou électrostrictifs
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
Intended is to provide a sensing device using a quartz sensor, which has an adsorbing layer formed on its surface for adsorbing a sensing object and which has its natural vibrations changed in number by the adsorption of the sensing object, so that the trouble of the quartz sensor may be detected so earlier as to keep the erroneous measurement result unrecognizable for the worker. The sensing device is equipped with a level detecting circuit for detecting the signal level of the oscillation output of an oscillation circuit. After a stable time period elapsed from the power ON, a computer fetches the detected level value and compares the signal level with a threshold value. When the signal level is lower than the threshold value, the computer judges and indicates a fault in a display unit, for example, thereby to inform the worker of the occurrence of the fault.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
G01G 3/16 - Appareils de pesée caractérisés par l'utilisation d'organes déformables par élasticité, p.ex. balances à ressort dans lesquels l'élément de pesée est constitué par un corps solide soumis à une pression ou une traction pendant la pesée utilisant la mesure des variations de la fréquence des oscillations du corps
A sensing device for measuring the concentration of an object to be sensed by using a crystal sensor or judging whether or not the object to be sensed exists. The sensing device has a structure in which an oscillation circuit unit and a device body containing a measuring section are separated, and the device body enables the user to grasp the oscillation frequency of the connected oscillation circuit unit. Bandpass filters having pass characteristics corresponding to the respective oscillation frequencies of the oscillation circuit are provided in the device body to discriminate the frequency signal. Whether the level of the discriminated frequency signal is the threshold value or more is grasped, a switch section is controlled to connect the channel the level of which is the threshold value or more to the measuring section, and a frequency e.g., a reference frequency used by the measuring section is selected according to the frequency of the frequency signal corresponding to the channel.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
In a short axis scanning type ultrasonic probe, a flat piezoelectric element group (2) is formed by arranging a plurality of stripe piezoelectric elements (2a) in the long axis direction which becomes the width direction of the piezoelectric elements (2a), and the piezoelectric element group (2) is contained in an airtight container (3) filled with a liquid (L) functioning as an ultrasonic medium, and the probe performs mechanical scanning to the piezoelectric element group (2) in the short axis direction which becomes the length direction of the piezoelectric elements (2a). Since the mechanical scanning is performed by moving the piezoelectric element group (2) linearly in the short axis direction, the transmission/reception wave front of ultrasonic wave touches a protrusion of a living body (e.g. breast) easily and azimuth resolution is improved in the short axis mechanical scanning probe.
A piezoelectric sensor for sensing an object to be measured in a sample liquid to realize measurement with high accuracy. The piezoelectric sensor comprises a press member forming a liquid containing space whose bottom is one side of a piezoelectric oscillator so provided to cover a recess of a wiring board and having a ring projection so provided to surround the liquid containing space, pressing the recess-outside portion of the one side of the piezoelectric oscillator against the wiring board, thereby fixing the position of the piezoelectric oscillator, and made of an elastic material. The diameters of the outer and inner peripheral surfaces of the ring projection decrease in the download direction, and the distance between the inner and outer peripheral surfaces decreases in the downward direction. Even if bubbles are included in the liquid containing space, the side surfaces form blunt angles with respect to the bottom surface. Since at the corner parts formed by the surfaces, the upper region when viewed from bubbles are open, the bubbles can move upward and are prevented from staying in the space. Thus, the measurement accuracy is improved.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
An ultrasonic probe (U) includes a piezoelectric element group (2) contained in a sealed container (3) and rotated/shaken rightward and leftward with respect to a center line dividing the plate plane of the piezoelectric element group (2) into two equal portions. The sealed container (3) is filled with a liquid (L) as an acoustic medium. The sealed container (3) has an inlet hole (10) for introducing the liquid (L) inside and an air discharge hole (13). The inlet hole (10) is connected to a flexible tube (15) functioning as a diaphragm. The flexible tube (15) and the air discharge hole (13) have sealing covers (11a, 11b), respectively. This prevents generation of air bubbles in the liquid as the ultrasonic wave medium and provides an ultrasonic probe having a preferable ultrasonic characteristic.
A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique
A frequency synthesizer enabling fine setting of frequency in a wide band according to a new principle and having a wide frequency acquisition range. By using specific solving means, the sinusoidal signal of output frequency of a voltage-controlled oscillating section is subjected to quadrature detection, a vector rotating at a frequency (rotation speed) which is the difference between the output frequency and the frequency of the frequency signal used for the detection is created, the frequency of the vector of when the output frequency becomes a set value is computed in advance, a voltage signal corresponding to the difference between the vector frequency and the computed frequency is fed back to the voltage-controlled oscillating section when the voltage-controlled oscillating section is driven so as to make the difference zero, thereby forming a PLL. Therefore, when the PLL is locked, the output frequency is adjusted to a set frequency. After the PLL is locked and if the difference between the output frequency and the set frequency becomes large, the set value is integrated by an integrating circuit section and the integral is added to the control voltage.
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
H03L 7/107 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer la synchronisation initiale ou pour élargir le domaine d'accrochage utilisant une fonction de transfert variable pour la boucle, p.ex. un filtre passe-bas ayant une largeur de bande variable
It is possible to provide a PLL device capable of obtaining significantly high frequency stability. More specifically, a standard signal is sampled from a constant temperature bath-equipped crystal oscillator (OCXO) by an A/D (analog/digital) conversion unit by using a frequency signal which is a 40 MHz rectangular wave. The digital signal is subjected to an orthogonal processing by an orthogonal conversion unit. A real part (I) and an imaginary part (Q) are acquired from a complex number of a vector of a phase equivalent to a phase difference between the standard signal and the frequency signal from the OCXO. The angular velocity of the vector is detected and a DC voltage corresponding to the angular velocity is generated via a PWM control unit and supplied to the OCXO.
H03L 7/06 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase
H03L 7/091 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie le détecteur de phase ou de fréquence utilisant un dispositif d'échantillonnage
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
In a PLL device for outputting a frequency signal from a voltage control oscillation unit in synchronization with a reference frequency signal from outside, it is possible to suppress frequency fluctuation even if a trouble is caused in the reference signal from outside. More specifically, a signal level of the reference frequency signal from outside is monitored. When the signal level is within a set range, PLL control is performed by using data on a phase difference formed by the phase difference data creation means. When the signal level is out of the set range, it is recognized that the signal supply has stopped or an error has occurred and PLL control is performed by switching to the data on the phase difference stored in the storage unit such as the latest data accumulated or a pre-generated data.
H03L 7/14 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer une fréquence constante quand la tension d'alimentation ou la tension de correction fait défaut
H03L 7/06 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase
H03L 7/091 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie le détecteur de phase ou de fréquence utilisant un dispositif d'échantillonnage
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
In an apparatus for converting an analog signal having a high periodicity to a digital signal by use of an A/D converter for a digital processing, the occurrence of spurious output caused by a malfunction of the A/D converter can be reduced. As a specific solution, for example, in a frequency synthesizer of a particular type of system, an A/D converter is placed on the output side of a voltage controlled oscillator and it is arranged that an output signal of the A/D converter be applied to a device, which performs a digital processing, and that a result of the digital processing be D/A converted and then applied back to the voltage controlled oscillator. In this case, it is arranged that noise occurring in the band noise generator be added to an input signal of the analog/digital converter and that the band noise be in a band that does not affect the digital signal processing performed in the foregoing device.
H03L 7/08 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase
H03L 7/18 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant un diviseur de fréquence ou un compteur dans la boucle
A minor axis oscillating ultrasonic probe (U) which provides on a rotary holding table (1) a group of piezoelectric elements (2) arranged in a major axis direction and have an acoustic lens (6) on the ultrasonic wave transmitting/receiving surface, houses the rotary holding table (1) in an enclosed container (3) in the minor axis direction of the group of piezoelectric elements (2) so as to rotate and oscillate, scans mechanically in the minor axis direction ultrasonic waves transmitted/received to/from the ultrasonic wave transmitting/receiving surface of the group of piezoelectric elements (2), fill the enclosed container (3) with liquid (L) as an acoustic medium, and has a means of absorbing unnecessary ultrasonic waves propagating in a major axis direction between the ultrasonic wave transmitting/receiving surface and the inner peripheral surface of the enclosed container (3), wherein projections (6b) are respectively provided as the means of absorbing unnecessary ultrasonic waves on the opposite end sides of the acoustic lens (6) corresponding to the major axis direction. Accordingly, the minor axis oscillating ultrasonic probe can reduce working steps in the production of the probe, ensure the sealing of the enclosed container and the absorption of unnecessary ultrasonic waves, and reduce the weight of the probe to provide excellent operability at diagnosing.
It has been difficult that conventional PLL circuits have a suppression characteristic of suppressing the phase noise which is free of variation due to temperature and individual difference and stable in a wide frequency band. The present invention provides a PLL circuit which can absorbs variation of phase noise characteristic due to temperature and individual difference and has a phase noise suppression characteristic stable in a wide frequency band. The PLL circuit comprises, at the succeeding stage, a first register (6) for storing a first parameter for controlling the loop gain, a first multiplier (7) for multiplying the output of the phase comparator (4) by a first parameter, a second register (12) for storing a second parameter for controlling the response characteristic, a second multiplier (13) for multiplying the output of the first multiplier by a second parameter, and a CPU (20) for setting optimum parameters in the first and second registers depending on the use frequency band, the ambient temperature, and the device individual difference. By controlling the loop gain and the response characteristic to optimum values, a good suppression characteristic in a wide frequency band is achieved.
H03L 7/107 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase pour assurer la synchronisation initiale ou pour élargir le domaine d'accrochage utilisant une fonction de transfert variable pour la boucle, p.ex. un filtre passe-bas ayant une largeur de bande variable
A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC (4) that receives a digital data, which has a coarse adjustment frequency, to output an analog signal; a fine adjustment DAC (6) that receives a digital data, which has a fine adjustment frequency, to output an analog signal; a low response speed LPF (5) that removes noise from the output signal from the coarse adjustment DAC (4) and then provides the resultant signal as an input to a VCO control terminal; a high response speed LPF (7) that converts the output signal from the fine adjustment DAC (6) to a voltage, thereby smoothing the signal; a resistor (R6) that connects an input stage of the LPF (5) to that of the LPF (7); and a capacitor (C8) used for providing a capacitive coupling such that the output of the LPF (7) is added to that of the LPF (5).
H03L 7/087 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant au moins deux détecteurs de phase ou un détecteur de fréquence et de phase dans la boucle
H03L 7/093 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
A sensor capable of simply grasping whether or not the concentration of an object to be sensed is a reference value or less. A sensor uses, as specific means, a piezoelectric vibrator having an absorbing layer for absorbing an object to be sensed and an electrode and vibratory with a natural frequency variable by the absorption of the object and senses the object by a variation of the natural frequency of the piezoelectric vibrator. The sensor has an oscillating circuit for vibrating the piezoelectric vibrator, a measuring section for measuring the concentration of the object according to the output of the oscillation of the oscillation circuit, a storage section for storing data created by associating the objects and their reference concentrations, selecting means for selecting an object, a data processing section for reading the reference concentration corresponding to the selected objected and comparing the read reference concentration with the concentration measured value, and an output section for outputting the result of the comparison by the data processing section.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
When a sensing object substance in a fluid is measured by using a quartz sensor (or a detecting sensor) adopting a quarts oscillator having its intrinsic frequency varied upon adsorption of the sensing object substance, it is intended for the user to know the intrinsic information such as the information on a quality simply and precisely. In specific solving means, the quartz sensor is equipped with an IC chip stored with the information intrinsic thereto, so that the intrinsic information can be read out and displayed when the quartz sensor is inserted into a density measuring device. The intrinsic information is information for warranting the quality, as exemplified by the maker, the manufacture number, the manufacture date and the quality warranting period. The intrinsic information may be further exemplified by the sensing object substance to be sensed by the quartz sensor or the concentration standard value of that substance.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
81.
CONCENTRATION SENSOR AND CONCENTRATION DETECTION DEVICE
A concentration sensor uses a piezoelectric piece whose unique frequency is changed by adsorption of a detection object such as a quartz piece. The concentration sensor can measure various fluids having different viscosities while suppressing the consumption of oscillation energy by inter-electrode capacity and cope with a plurality of types concentration sensors by using a common oscillation circuit. More specifically, the piezoelectric piece is connected to an inductor in parallel and the inductance value is decided by a relationship between an inductance value and an oscillation loop gain. The inductance value is between an inductance value Lmax to cancel the inter-electrode capacity in resonance frequency of the piezoelectric piece and an inductance value Lmin evaluated as the minimum inductance value capable of oscillating when the piezoelectric piece is immersed in the measurement fluid.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
Provided is a piezoelectric vibrator wherein a foil-like electrode for exiting a plate-like piezoelectric piece is provided on the surface of the piezoelectric piece and deterioration of the electrode is suppressed even in a high temperature condition. A temperature sensor suitable for high temperature measurement is also provided. The electrode is composed of a first metal layer, which is formed on the surface of the piezoelectric piece and is composed of at least one material selected from chromium, titanium, nickel, aluminum and copper, or a material having adhesiveness equivalent to such metals to the piezoelectric piece; a second metal layer which is formed on the surface of the first metal layer and is composed of gold or silver; and a third metal layer which is formed on the surface of the second metal layer and is composed of chromium. The temperature sensor using such piezoelectric vibrator can highly accurately measure a temperature even in a high temperature area of 300°C or higher.
H03H 9/19 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiques; Résonateurs électromécaniques - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
G01K 7/32 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant la variation de la fréquence de résonance d'un cristal
83.
SPECTRUM SPREAD COMMUNICATION METHOD AND SYSTEM USING VERY WEAK POWER, AND HIGH FREQUENCY RADIO APPARATUS
A high frequency radio apparatus that can modify the frequency of its own carrier in accordance with the frequency of a received carrier when performing a spectrum spread communication by use of a very weak power. A carrier demodulating part (202) demodulates a spread code, which is received from a communication apparatus of the other end of communication, by use of default carrier data, and then sends it to a synchronization timing detecting part (205). When the synchronization timing detecting part (205) detects the spread code from the carrier demodulated data, a carrier frequency deviation detecting part (204) performs a frequency analysis of the spread code, thereby detecting a deviation amount of the carrier frequency. A carrier data generating part (206) generates, based on the detected deviation amount, carrier data as corrected. A DBPSK modulating part (211) uses the corrected carrier data to perform data transmission to the communication apparatus of the other end of communication.
In a case of using a plurality of quartz crystal sensors each including, for example, a quartz crystal resonator whose natural frequency varies depending on the adsorption of an object to be sensed, the instability of frequency measurement based on a spatial coupling between mutually adjacent quartz crystal sensors is avoided. A specific approach may be described as follows. A measuring part (200) for measuring a frequency variation is provided in common to the oscillation circuits (51) corresponding to the respective ones of quartz crystal sensors (1). The measuring part (200) is sequentially connected to each one of the oscillation circuits (51) by switching. The oscillation circuits (51) other than the one (51) connected to the measuring part (200) are connected to the respective ones of terminating loads (54) by the respective ones of switches (52) each serving as a load switching part. In this way, the value of the load on the output side of the oscillation circuit (51) (which is to be measured) included in a channel being connected to the measuring part (200) is made different from the values of the loads on the output sides of the oscillation circuits (51) on standby, thereby forcedly separating their oscillation frequencies from each other.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
A high-sensitivity Rangevin type quartz sensor which can be easily assembled, can prevent damage to a quartz oscillator during the assembly work, and permits an easy measurement. A recess is formed in a quartz holding member of, for example, rubber, and a quartz oscillator is held on the quartz holding member so as to close this recess to form an airtight space. A hole is formed in a wiring board and a protrusion protruding from the rear side of the recess of the quartz holding member is fitted into the hole. Then, a conductive adhesive is used to electrically connect the oscillator electrode of the quartz oscillator with the electrode of the wiring board, a portion surrounding the quartz oscillator in the quartz holding member is pressed against the wiring board by means of a lid to form a sample solution pouring space, thus forming a quartz sensor. Because there is no possibility of the quartz oscillator being pressed and an excessive force being applied to the quartz oscillator during the production of the quartz sensor with no possibility of the quartz oscillator directly touching the wiring board, the quartz oscillator is prevented from being damaged.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
When a plurality of quartz sensors provided with Rangevin type quartz oscillators are used to detect the presence/absence or concentration of an object to be measured, a measurement is performed with ease. Quartz sensors (3) each provided with a quartz vibrator (30) formed on one surface side with an adsorption layer for adsorbing a measuring object component and in contact with an airtight space on the other surface side are mounted to a printed board (4) via a base body (5). The plurality of quartz sensors (3) are mounted, via a connection terminal unit (41) formed at one end side of the printed board (4), to a plurality of connection terminal units provided so as to be arranged in a lateral direction at the side surface (21) of a measuring instrument body (2) in such a manner that they are attachable/detachable with the adsorption layers directed upward. The measuring instrument body (2) includes an oscillation circuit (71) electrically connected with the quartz sensors (3), detects a change in the natural frequency of the quartz oscillator when a sample solution is brought into contact with the adsorption layer, and measures at least one of the absence/presence and the concentration of a measuring object component in the sample solution based on the detection results.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
A Rangevin type quartz sensor being high in measuring sensitivity and prevented from being affected by the surface tension of a sample solution when measuring, and allowing a built-in quartz oscillator to constantly oscillate. The quartz sensor comprises a storing area forming unit surrounding the upper space of one surface side of the quartz oscillator to form a sample solution storing area, facing surface unit facing one surface side of the quartz oscillator via the storing area and being larger than the area in contact with the sample solution of the quartz oscillator, and an inlet formed in an area on the outer side of this facing surface unit and at a position higher than the facing surface unit to pour sample solution into the storing area, wherein sample solution is measured in a still state of being filled to the lower side of the facing surface unit. In this state, stress due to the surface tension of the sample solution will not act to thereby ensure the positive oscillation of the quartz oscillator. Accordingly, the quartz sensor enables a high-sensitivity, high-accuracy measurement since the quartz oscillator can be reduced in thickness.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
88.
INFORMATION SHARING SYSTEM FOR CAR-MOUNTED INFORMATION DEVICE
An information sharing system enabling a mobile child set to refer to the information obtained in a car navigation system by using a keyless entry system. The information sharing system is provided with a child set (10') and a parent set (10) of the keyless entry system. Of the pieces of information stored or acquired by a car navigation system (6), a piece of information relating to an area within a specific range from the position where the vehicle stopped is stored in a memory (5) of the parent set (10), and is transmitted to the child set (10') by utilizing weak radio communications. The information transmitted is stored in a memory (5') of the child set (5) so that it can be displayed in notification means (7).
E05B 49/00 - Serrures à permutation électrique; Circuits à cet effet
G01C 21/00 - Navigation; Instruments de navigation non prévus dans les groupes
B60R 25/01 - VÉHICULES, ÉQUIPEMENTS OU PARTIES DE VÉHICULES, NON PRÉVUS AILLEURS Équipements ou systèmes pour interdire ou signaler l’usage non autorisé ou le vol de véhicules agissant sur des systèmes ou des équipements de véhicules, p.ex. sur les portes, les sièges ou les pare-brises
B60R 25/24 - Moyens pour enclencher ou arrêter le système antivol par des éléments d’identification électroniques comportant un code non mémorisé par l’utilisateur
G01C 21/26 - Navigation; Instruments de navigation non prévus dans les groupes spécialement adaptés pour la navigation dans un réseau routier
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
89.
SPREAD SPECTRUM COMMUNICATION SYSTEM AND ITS CONSTITUENT DEVICE
A spread spectrum communication system in which the data rate can be varied through a relatively simple constitution. A child radio device estimates the distance to the parent radio device by using the I and Q signals generated by carrier demodulation, selects the code of a code length associated with the estimated distance from the previously held codes, performs spreading/despreading using the same, and performs transmission/reception. The parent radio device performs spreading/despreading using a code having the same code length as that of the code selected by the child radio device.
A vehicle state notifying system for notifying the user of the vehicle state through a simple constitution at a low cost. The system is composed of a child device (300) which the user carries and a parent device (200) radio-communicatable with the child device (300) bidirectionally. On receiving send request data from the child device (300), the parent device (200) creates notification data representing the state of an automobile (100) from the results of detection of the state of the automobile (100) by sensors and transmits the notification data to the child device (300) through weak radio. The parent device (200) synchronizes the transmission timing of the notification data with the reception interval of the child device (300).
G08B 25/04 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p.ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission utilisant une ligne de signalisation unique, p.ex. en boucle fermée
B60R 25/01 - VÉHICULES, ÉQUIPEMENTS OU PARTIES DE VÉHICULES, NON PRÉVUS AILLEURS Équipements ou systèmes pour interdire ou signaler l’usage non autorisé ou le vol de véhicules agissant sur des systèmes ou des équipements de véhicules, p.ex. sur les portes, les sièges ou les pare-brises
B60R 25/04 - VÉHICULES, ÉQUIPEMENTS OU PARTIES DE VÉHICULES, NON PRÉVUS AILLEURS Équipements ou systèmes pour interdire ou signaler l’usage non autorisé ou le vol de véhicules agissant sur des systèmes ou des équipements de véhicules, p.ex. sur les portes, les sièges ou les pare-brises agissant sur le système de propulsion, p.ex. le moteur ou le moteur d’entraînement
B60R 25/10 - VÉHICULES, ÉQUIPEMENTS OU PARTIES DE VÉHICULES, NON PRÉVUS AILLEURS Équipements ou systèmes pour interdire ou signaler l’usage non autorisé ou le vol de véhicules actionnant un dispositif d’alarme
B60R 25/102 - VÉHICULES, ÉQUIPEMENTS OU PARTIES DE VÉHICULES, NON PRÉVUS AILLEURS Équipements ou systèmes pour interdire ou signaler l’usage non autorisé ou le vol de véhicules actionnant un dispositif d’alarme un signal étant envoyé vers un lieu distant, p.ex. signal radio transmis à un poste de police, à une entreprise de sécurité ou au propriétaire du véhicule
B60R 25/24 - Moyens pour enclencher ou arrêter le système antivol par des éléments d’identification électroniques comportant un code non mémorisé par l’utilisateur
B60R 25/32 - Détection relative au vol ou autres événements relatifs aux systèmes antivol de paramètres dynamiques du véhicule, p.ex. de la vitesse ou de l’accélération
B60R 25/34 - Détection relative au vol ou autres événements relatifs aux systèmes antivol de l’état des composants du véhicule, p.ex. des fenêtres, des serrures des portes ou des appareils de sélection de changement de vitesse
G08B 13/00 - Alarmes contre les cambrioleurs, les voleurs ou tous intrus
H04B 7/26 - Systèmes de transmission radio, c. à d. utilisant un champ de rayonnement pour communication entre plusieurs postes dont au moins un est mobile
H04W 24/10 - Planification des comptes-rendus de mesures
H04W 4/04 - dans un environnement spécialisé, p.ex. des immeubles ou des véhicules
A sensing apparatus capable of instantaneously detecting, with a high precision, a very small quantity of, for example, environmental pollutants or the like. A frequency signal from a reference clock generating part is used to sample a frequency signal from a crystal oscillator, and the resulting sampled values are outputted as a digital signal. A digital signal is used to perform a quadrature detection for a frequency signal corresponding to that output signal, thereby obtaining a rotational vector rotating at the frequency of a difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection. The velocity of the rotational vector is determined based on the sampled values, thereby detecting the frequency variation. Additionally, the rotational vector is multiplied by a reversely rotational vector corresponding to the velocity of the rotational vector, whereby the determination range of the frequency variations can be widened.
G01N 5/02 - Analyse des matériaux par pesage, p.ex. pesage des fines particules séparées d'un gaz ou d'un liquide en absorbant ou adsorbant les constituants d'un matériau et en déterminant la variation de poids de l'adsorbant, p.ex. en déterminant la teneur en eau
brevets
