The purpose of the present disclosure is to uniformly heat a microwave heating target by uniformly distributing the microwave magnetic field or the microwave electric field near the center axis of a cavity resonator, when heating a heating target by using microwaves. The present disclosure is a microwave heating device M equipped with: a cavity resonator 1 for concentrating the microwave magnetic field or the microwave electric field on the center axis; a storage container 2 for storing the microwave heating target on the center axis of the cavity resonator 1; and two excitation loops 3 which are positioned at 90-degree intervals from one another inside the cavity resonator 1 or on a lateral wall thereof, and in which adjacent targets are excited at a phase difference of 90 degrees, or n number of excitation loops 3 (n is 3 or higher) which are positioned at n/360 degrees from one another inside the cavity resonator 1 or on the lateral wall thereof, and in which adjacent targets are excited at a phase difference of n/360 degrees. Said microwave heating device M is characterized in that the microwave magnetic field distribution or microwave electric field distribution rotates around the center axis of the cavity resonator 1 as time passes.
The purpose of the present disclosure is, in the use of microwaves to heat a heating target, to maintain the resonance frequency of a microwave heating device regardless of the inclination angle of an excitation loop relative to the magnetic field direction of a cavity resonator, and to reliably maintain matching between an input impedance of the microwave heating device and an output impedance of a microwave generator. The present disclosure comprises: an excitation loop 3 that is installed on the interior and a side wall of a cavity resonator 1, that excites the cavity resonator 1, and that has an inclination angle set relative to the magnetic field direction of the cavity resonator 1 so that the input impedance of a host device M will match an output impedance of a microwave generator; and a parasitic loop 4 that is installed on the interior and a side wall of the cavity resonator 1, that is not supplied with power, and that has an inclination angle set relative to the magnetic field direction of the cavity resonator 1 so that a resonance frequency of the host device M maintains a desired resonance frequency regardless of the inclination angle of the excitation loop 3 relative to the magnetic field direction of the cavity resonator 1.
Provided are a hydrogen production catalyst that exhibits both superior catalytic activity and durability, and a hydrogen production method. This hydrogen production catalyst includes a carbon carrier and catalyst metal particles supported on the carbon carrier. The catalyst metal particles include a noble metal. The ratio of the BJH mesopore volume to the BJH micropore volume, as obtained by a nitrogen adsorption method, is 0.30-7.80 inclusive and the ratio of the sum of the BJH micropore area and the BJH mesopore area to the BJH macropore area, as obtained by a nitrogen adsorption method, is 30-3500 inclusive.
B01J 23/46 - Ruthenium, rhodium, osmium or iridium
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
B01J 35/10 - Solids characterised by their surface properties or porosity
C01B 3/32 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
The purpose of the present invention is to simply and accurately measure a gas concentration. This gas concentration measurement device (100) comprises: a concentration measurement space (22); a transmission unit (14) which transmits an ultrasonic wave to the concentration measurement space (22) in response to a transmission signal; a reception unit (16) which receives the ultrasonic wave propagated through the concentration measurement space (22), and outputs a reception signal; and an analysis unit (18). The analysis unit (18) obtains a space propagation time in the concentration measurement space (22) on the basis of a timing at which the transmission signal is input to the transmission unit 14 and a timing at which the reception signal is output from the reception unit 16, and obtains the concentration of a gas to be measured on the basis of the space propagation time. The analysis unit 18 obtains a correction value for a direct wave-type propagation time on the basis of the direct wave-type propagation time and a reflective wave-type propagation time, and obtains a space propagation time on the basis of: the corrected propagation time obtained by correcting the direct wave-type propagation time on the basis of the correction value; or one of the direct wave-type propagation time or a value related thereto in the reflection wave-type propagation time.
An objective of the present invention is to accurately measure the concentration of the gas. A gas concentration measurement device (100) comprises: a transmission unit (14) which transmits ultrasonic waves to a concentration measurement space (22); a reception unit (16) which receives the ultrasonic waves propagated through the concentration measurement space (22) and outputs a reception signal; and a concentration measurement unit (48) which determines the spatial propagation time during which the ultrasonic waves propagate through the concentration measurement space (22) and determines the concentration of the gas on the basis of the spatial propagation time. The concentration measurement unit (48) comprises a first memory (60) and a second memory (62), and a time shift filter (64) which applies a time shift process. The concentration measurement unit (18) determines the degree of approximation between a reception signal read from the second memory (62) and a time shift signal read from the first memory (60) and to which the time shift process has been applied, determines the time difference of pulses of neighboring reception signals on the time axis on the basis of the degree of approximation to the minimum shift time in the time shift process, and determines the spatial propagation time on the basis of this time difference.
The purpose of the present invention is to precisely measure the concentration of a gas. This waveform shaping device comprises a reception unit (16) for receiving ultrasonic waves having a frequency that corresponds to a frequency control value and outputting a reception signal, and an analysis unit (18) for generating a shaped reception signal obtained by synthesizing the reception signal and an adjustment signal in which the reception signal is delayed to adjust the level thereof. The analysis unit (18) derives an evaluation value obtained by synthesizing and integrating the reception signal and a delay signal in which the reception signal is delayed by a delay time that corresponds to the frequency control value, and searches for a frequency control value at which the evaluation value is minimized. The analysis unit (18) generates the adjustment signal on the basis of the delay signal corresponding to the frequency control value at which the evaluation value is minimized.
The purpose of the present disclosure is to improve, relative to the power supplied to a microwave generator, the heating efficiency of an accommodating container to be microwave-heated, when a cavity resonator for microwave heating is excited in an excitation mode in which a magnetic field is concentrated on a central axis. The present disclosure is a microwave heating device 3, characterized in that: a cavity resonator 31 for microwave heating and an accommodating container 32 to be microwave-heated are provided; the cavity resonator 31 is excited in an excitation mode in which a magnetic field is concentrated on a central axis; the accommodating container 32 is disposed on the central axis of the cavity resonator 31; and the cavity resonator 31 has a slit formed in a side surface 311 in a direction parallel to the central axis.
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Urayama Kenichiro
Nishioka Masaki
Fukuda Takashi
Abstract
Disclosed is a chemical reaction device 1 capable of eliminating variation in the temperature of a reaction container with a simple configuration, wherein raw material is put into a reaction container 2 in the state where a catalyst 3 housed in the reaction container 2 is heated, and a product is discharged from the reaction container 2. The chemical reaction device comprises a switching means for switching between a first flow direction in which the raw material is put in from one end side of the reaction container 2 and the product is discharged from the other end side of the reaction container 2 and a second flow direction in which the raw material is put in from the other end side of the reaction container 2 and the product is discharged from the one end side of the reaction container 2.
NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY (Japan)
Inventor
Akiike, Takanori
Satsumabayashi, Jun
Toeda, Kengo
Imazu, Hayama
Shoji, Ruri
Abstract
Provided is a navigation assistance device with which it is possible to determine a navigation obstacle zone by taking into account a margin. This navigation assistance device allows for determination of a navigation obstacle zone based on the relationship between one vessel and another vessel. The navigation assistance device comprises: a margin extent acquisition unit that acquires a margin extent indicating the extent of a margin; and a computation unit that determines a margin position, which is a position away from the position of at least one of the bow or the stern of the other vessel by a distance determined according to the margin extent in a target occupied space set with respect to the position of the other vessel, that determines a collision course on the basis of a position determined according to the motion vector of the other vessel with respect to the margin position, and that calculates the navigation obstacle zone on the basis of the thus determined collision course.
The purpose of the present disclosure is to maintain detection of an overboard fall of a ship crewperson when the ship crewperson is floating after falling overboard, and to reliably provide notification of an overboard fall of a ship crewperson. The present disclosure provides a overboard fall detection unit U characterized by comprising: a water environment sensor 1 which is equipped on a ship crewperson C and which outputs data pertaining to the water environment surrounding the ship crewperson C; an overboard fall detection part 21 which detects an overboard fall of the ship crewperson C on the basis of the data pertaining to the water environment; and an overboard fall notification part 23 which transmits a beacon signal that continuously provides notification of information pertaining to the overboard fall of the ship crewperson C via one-way communication.
G08B 21/08 - Alarms for ensuring the safety of persons responsive to an abnormal condition of a body of water
G08B 25/10 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
The purpose of the present invention is to achieve a flow regulating structure that improves the performance of a gas sensor. The flow regulating structure (32) comprises a plurality of rail structures. Each rail structure has a plurality of rod-shaped members (50) that are arranged side-by-side with the same direction of extension. The plurality of rail structures are disposed along the direction of gas travel in overlapping positions with space therebetween. The extension directions of the rod-shaped members (50) differ between adjacent rail structures. In each rail structure, the plurality of rod-shaped members (50) are arranged side-by-side with the same direction of extension in both a first virtual plane and a second virtual plane, which face one another in the direction of gas travel, and when viewed from the direction of gas travel, the rod-shaped members (50) disposed on the second virtual plane are positioned between adjacent members among the plurality of rod-shaped members (50) disposed on the first virtual plane.
The purpose of the present invention is to achieve a gas-liquid separator that improves the performance of a gas sensor. The gas-liquid separator (16) comprises: a swirl structure that causes a gas heading from upstream to downstream to swirl about a flow axis heading from upstream to downstream; a separation structure that discharges outward liquid components contained in the gas passing through the swirl structure; and a deflection structure that is provided downstream of the swirl structure and deflects the gas that has passed through the swirl structure. The deflection structure is provided with: a narrowing core portion (26) that has a three-dimensional shape which narrows from upstream to downstream; and deflecting fins (32) that are provided to the side surface of the narrowing core portion (26) and deflect the gas in the opposite direction to the swirling direction resulting from the swirl structure.
This base station device is provided with a beacon transmission unit, a connection establishment request reception unit, and a data communication unit. The beacon transmission unit transmits a beacon signal including information pertaining to a plurality of base station devices that may be present around the beacon transmission unit. The connection establishment request reception unit receives a connection establishment request from a terminal device that has received the beacon signal. The data communication unit, in response to the connection establishment request, initiates one-to-one data communication with the terminal device.
Provided are a wireless communication unit and a wireless network system that make it possible to wirelessly link a plurality of wireless communication terminals by means of a simple structure, can easily realize linking operations, and can perform transmission control of IP packets even if communication path information is not acquired from an outside network. The present invention has a relay wireless communication unit that can connect via an inter-upstream-unit wireless bearer to an upstream unit (an upstream wireless base station unit) that is a separate wireless communication unit that is upstream. The present invention also has a wireless base station unit that can connect via an inter-downstream-unit wireless bearer to a downstream unit (a downstream relay wireless communication unit) that is a separate wireless communication unit that is downstream. The inter-downstream-unit wireless bearer and the inter-upstream-unit wireless bearer are built in accordance with the same wireless protocol stack system as a terminal wireless bearer that connects a mobile terminal to the wireless base station units.
The objective of the present invention is to measure gas concentration with a high degree of accuracy. A gas sensor (10) is provided with: a sensor enclosure (14); an ultrasonic transducer (30) provided at one end of the sensor enclosure (14); an ultrasonic wave reflecting surface (44) which is provided at the other end of the sensor enclosure (14) and which intersects an axial direction of the sensor enclosure (14); and a plurality of ventilation holes (16) provided in a side wall of the sensor enclosure (14). The plurality of ventilation holes (16) are provided in positions such that one side of the sensor enclosure (14) cannot be seen from the other side thereof when viewed from a side surface side of the sensor enclosure (14), and each ventilation hole (16) has a shape extending in the axial direction of the sensor enclosure (14).
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details
16.
ULTRASONIC WAVE TRANSMITTER, PROPAGATION TIME MEASUREMENT DEVICE, GAS CONCENTRATION MEASUREMENT DEVICE, PROPAGATION TIME MEASUREMENT PROGRAM, AND PROPAGATION TIME MEASUREMENT METHOD
The purpose of the present invention is to improve the precision of measuring the propagation time of ultrasonic waves. A gas concentration measurement device comprises: a transmission circuit 38 and a transmission oscillator 16 for transmitting first ultrasonic waves in a concentration measurement space and also transmitting second ultrasonic waves, which continue temporally from the first ultrasonic waves in the concentration measurement space; a reception oscillator 18 and a reception circuit 40 for receiving the ultrasonic waves that have propagated through the concentration measurement space; and a propagation time measurement unit 32 for determining, on the basis of the timings at which the first ultrasonic waves and the second ultrasonic waves were transmitted and the timings at which the first ultrasonic waves and the second ultrasonic waves were received, the time in which ultrasonic waves propagate through the concentration measurement space. The second ultrasonic waves have an opposite phase with respect to that of the first ultrasonic waves, and the amplitude of the second ultrasonic waves is greater than that of the first ultrasonic waves.
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
G01N 29/44 - Processing the detected response signal
17.
PROPAGATION TIME MEASUREMENT MACHINE, GAS CONCENTRATION MEASUREMENT DEVICE, PROPAGATION TIME MEASUREMENT PROGRAM, AND PROPAGATION TIME MEASUREMENT METHOD
The purpose of the present invention is to improve the precision of measuring the propagation time of ultrasonic waves. A processor 28 serving as a computation unit is configured to include a correlation object determination unit 32 for establishing: a first to-be-correlated signal established on the basis of a first upper-limit rate of change, which is the rate of change of an upper-limit envelope of a direct wave signal, and a first lower-limit rate of change, which is the rate of change of a lower-limit envelope of the direct wave signal; and a second to-be-correlated signal established on the basis of a second upper-limit rate of change, which is the rate of change of an upper-limit envelope of a once-delayed wave signal, and a second lower-limit rate of change, which is the rate of change of a lower-limit envelope of the once-delayed wave signal. The processor 28 is also configured to include a correlation processing unit 34 for establishing a correlation value between the first to-be-correlated signal and a signal in which the second to-be-correlated signal is moved on a time axis. The correlation processing unit 34 functions as a propagation time measurement unit for establishing the time difference between the first to-be-correlated signal and the second to-be-correlated signal on the basis of the correlation value, and establishing the time for ultrasonic waves to propagate through a concentration measurement space on the basis of the time difference.
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
G01N 29/50 - Processing the detected response signal using auto-correlation techniques or cross-correlation techniques
18.
VOYAGE PLAN DESIGN ASSISTANCE DEVICE, VOYAGE PLAN DESIGN ASSISTANCE SYSTEM, DISPLAY OPERATION DEVICE DIVIDER, AND DISPLAY OPERATION DEVICE UNIT
[Problem] To provide a nautical chart display device that makes it possible to simply switch between nautical chart image manipulation and handwritten information input, manages input handwritten information so as to reliably associate the same with nautical chart information, and shares the handwritten information. [Solution] A nautical chart display system 1 for providing nautical chart information is provided with an information management device 2 for storing current location information and topographical information and a display device 3 for displaying a nautical chart based on the current location information and topographical information. The display device 3 is provided with: a nautical chart display function 31 for displaying a prescribed nautical chart and, if there is a movement operation, displaying the nautical chart after the movement; a scaling function 32 for enlarging or reducing the display range of the nautical chart; a tool display function 33 for displaying a switching means 39 for switching between nautical chart manipulation and the input of handwritten information; a handwriting creation function 34 for creating handwritten information through the contact and sliding of a finger or rod-like member; and a handwriting display function 35 for displaying the created handwriting information.
G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
G09B 29/00 - Maps; Plans; Charts; Diagrams, e.g. route diagrams
G09B 29/10 - Map spot or co-ordinate position indicators; Map-reading aids
19.
GAS CONCENTRATION MEASURING DEVICE AND METHOD OF CALIBRATING SAME
The objective of the present invention is to improve the measuring accuracy of a gas concentration measuring device. A variable value calculating process includes: a step of measuring a propagation time of the propagation of an ultrasound wave through a measurement sector inside a housing 10; a step of obtaining a temperature calculated value on the basis of the measured value of the propagation time and a reference distance for the measurement sector; a step of obtaining a temperature measured value by measuring the temperature inside the housing 10; and a step of obtaining a temperature replacement fluctuation value indicating a difference between the temperature calculated value and the temperature measured value. The variable value calculating process is executed for each of a plurality of temperature conditions under which the temperature of a reference gas inside the housing 10 differs. A temperature compensation table in which the temperature of a gas to be measured is associated with a temperature compensation value relating to the temperature is obtained on the basis of the temperature replacement fluctuation values obtained under each temperature condition.
The present invention solves a problem by fixing an ultrasonic vibrator to a housing so that the fixing position of the ultrasonic vibrator does not shift even if vibration is applied to the ultrasonic vibrator from the outside. This ultrasonic measuring device is provided with columnar ultrasonic vibrators 22, 23, and an inner chassis 25 that holds the ultrasonic vibrators 22, 23. In order to fix the ultrasonic vibrators 22, 23 by aligning the ultrasonic vibrators with the inner chassis 25, the ultrasonic measuring device has grooves 22b, 23b that extend in the circumferential direction of the ultrasonic vibrators 22, 23, and protrusions 25f, 25f, which are provided to the inner chassis 25, and which fit in the grooves 22b, 23b.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
[Problem] To provide a maritime chart display device that conveniently switches an operation with respect to a maritime chart image and the input of handwritten information, manages the input handwritten information by reliably linking the same to maritime chart information, and shares the handwritten information. [Solution] A maritime chart display system 1 that provides maritime chart information includes an information management device 2 for storing location information and terrain information and a display device 3 for displaying a maritime chart on the basis of the location information and the terrain information. The display device 3 is provided with: a maritime chart display function 31 that displays a prescribed maritime chart and, when a move operation is performed, displays a maritime chart after movement; a scaling function 32 that expands or reduces the display range of the maritime chart; a tool display function 33 that displays a switch means 39 for switching between the operation with respect to the maritime chart and the input of handwritten information; a handwriting preparation function 34 that prepares the handwritten information via contact or sliding using the finger or a rod-like item; and a handwriting display function 35 that displays the handwritten information prepared.
Provided is an ultrasonic wave detecting device that allows exchange of a piezoelectric vibrator, including: a cylindrical rigid wall fixed to a rear surface of a vehicle fender; a lid that is detachably attached to the cylindrical rigid wall or a rigid cylinder extending upward from the wall; a piezoelectric vibrator including a buffer layer on the bottom surface; a restraining member made of a flexible material and provided on the top surface and the periphery of the piezoelectric vibrator; and an elastic material that is provided between the lid and the top surface of the restraining member so as to press, toward the rear surface of the fender, the piezoelectric vibrator restrained by the restraining member.
B60R 19/48 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
G01S 15/93 - Sonar systems specially adapted for specific applications for anti-collision purposes
Provided is an ultrasonic sensor which is installed on the rear surface of a bumper of an automobile (a surface facing the front surface of the body of the automobile) and is thus particularly useful for detecting the position of a person or object near the automobile. The ultrasonic sensor includes the following members: a replaceable piezoelectric vibrator closely and detachably fixed to a surface of a plate-shaped base with or without a shock absorbing layer therebetween; a tubular housing which houses the piezoelectric vibrator therein, has an opening in a bottom surface thereof, and has a closed top surface; a first elastic body inserted between the top surface of the piezoelectric vibrator and the lower surface of the top portion of the tubular housing; a tubular wall made of a rigid material, having a surface joined to the plate-shaped base in a bottom portion thereof, having a detachable cover at a top portion thereof, and housing the tubular housing in a noncontact manner; and a second elastic body inserted between the lower surface of the cover of the tubular wall made of the rigid material and the top surface of the tubular housing.
B60R 19/48 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
24.
WAVEGUIDE TUBE/TRANSMISSION LINE CONVERTER AND ANTENNA DEVICE
The objectives of this disclosure are: to reduce the size, from among the sizes of a pattern disposed on an obverse surface of a dielectric substrate, in a direction along a wide-wall surface cross section of a waveguide tube, in a waveguide tube/transmission line converter; to reduce the separation between adjacent rows of antenna elements, in an antenna device; and, with regard to directionality of an array antenna formed by means of the antenna elements that form each row, to adjust in particular phase information of each antenna element in order to reduce the likelihood that grating lobes will occur when a beam is scanned over a wide angle. In this disclosure, inadvertent emission of electromagnetic waves is prevented by arranging that a waveguide tube 11 extends on the inside of a dielectric substrate 13, and that metal members 15 for holding a short-circuiting metal layer 14 at the same potential as the waveguide tube 11 remain along the two wide-wall surface cross sections of the waveguide tube 11, and are removed along the two short-wall surface cross sections of the waveguide tube 11.
The orthogonal separation device of the present invention is provided with a demodulation unit which is concurrently transmitted a plurality M of pulse waves having phases ϕ1 to ϕM that are set to a sequence of individually different known discrete values, and which performs, on a plurality P (= M × n) of pulse waves (R11 to R1M), ..., (RN1 to RNM) respectively arriving at a plurality N of antennas, a demodulation process corresponding to each of the plurality N of antennas, to generate a plurality P of demodulated signals (R'11 to R'1M), ..., (R'N1 to R'NM); and a phase adjustment unit for aligning the differences in the phases of the plurality P of demodulated signals (R'11 to R'1M), ..., (R'N1 to R'NM) on the basis of the sequence of known discrete values, to generate a plurality of in-phase signals (r11 to r1M), ..., (rN1 to rNM).
G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
G01S 13/42 - Simultaneous measurement of distance and other coordinates
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04J 99/00 - Subject matter not provided for in other groups of this subclass
A vehicle radar device provided with a transmission and reception unit for generating a beat signal from a transmission signal and a reception signal, a frequency analysis unit for generating a two-dimensional spectrum including a speed component and a distance component by applying prescribed frequency analysis processing to a signal sequence of the beat signal, and a speed determination unit for dividing the speed component of the two-dimensional spectrum into a plurality of blocks, carrying out constant false alarm rate (CFAR) processing on each of the plurality of blocks, and specifying the speed of the vehicle of the radar device on the basis of a threshold obtained through the CFAR processing.
G01S 13/60 - Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
This ultrasonic sensor contains the following: an ultrasonic transducer, the underside of which is affixed to the surface of a flat plate-shaped base, that contains a piezoelectric transducer element, said piezoelectric transducer element consisting of a piezoelectric sintered-ceramic column with electrode layers provided on the top and bottom surfaces thereof, and may be provided with an acoustic-matching-material layer at the bottom of the piezoelectric transducer element; a transmission circuit and a reception circuit electrically connected to the respective electrode layers on the piezoelectric transducer element; computation circuits electrically connected to said transmission circuit and reception circuit, respectively; and a rigid tubular wall material that is affixed to the surface of the flat plate-shaped base and laid out so as to surround the ultrasonic transducer without contacting same and with a gap therebetween. Said ultrasonic sensor is easy to affix to the surface of a flat plate-shaped base such as a bumper on a vehicle without reducing the mechanical strength of said flat plate-shaped base, can stably transmit and receive ultrasonic signals to and from a space on the opposite side of the flat plate-shaped base through said flat plate-shaped base with a suitable degree of directionality, and can precisely measure the position of an object in the space on the side of the flat plate-shaped base opposite the ultrasonic sensor.
B60R 19/48 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
G01S 15/93 - Sonar systems specially adapted for specific applications for anti-collision purposes
A feed line in the form of a triplate line that runs from a waveguide/triplate-line converter coupled to a radio to a plurality of patch antennas in a cluster pattern. The width and length of a section of said feed line between the waveguide/triplate-line converter and the branch point nearest thereto are set such that the impedance of said section directly matches the parallel combination of the impedances of branches beyond said branch point and the loss in said section is kept to or below a predetermined upper limit.
A two-port triplate-line/waveguide converter in one embodiment of this invention is provided with a rectangular waveguide and two probes that connect to central conductors of separate triplate lines via slits, said slits being formed separately on two opposing inside walls of the rectangular waveguide and lying on an imaginary straight line that is perpendicular to said inside walls. The two probes, the tips of which are bent inside the rectangular waveguide, constitute monopole antennas with the aforementioned inside walls functioning as the ground planes thereof.
[Problem] To provide an image display device for mounting on a console, wherein the image display device is easily mounted on the console of a marine vessel, an aircraft, or the like, and configured so as to improve the design characteristics by ensuring that attachment fixtures such as screws and bolts are not visible. [Solution] An image display device (1) for mounting on a console and equipped with: a frame (2); an image display module (3) arranged on the inside of the frame (2); a transparent panel (4) that protects a display screen (31) of the image display module (3); a support part (20) having a prescribed shape and arranged at the outer periphery of the transparent panel (4); and cover members (50) attached to the support part (20). The configuration is such that through-holes are formed in the support part (20) at prescribed intervals, with the device main body being mounted from the front side of the console, and the device main body being attached to the console by inserting attachment fixtures such as screws or bolts through the through-holes. When the cover members (50) are attached to the support part (20) the attachment fixtures are covered by the cover members (50), and the transparent panel (4) and the cover members (50) are arranged with no difference in height at their boundary, so that the front surface of the device appears flat.
G06F 1/16 - Constructional details or arrangements
G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
31.
DEVICE FOR MEASURING CHARACTERISTIC OF MEASUREMENT OBJECT
This device for measuring a characteristic of a measurement object is provided with an elastic-surface-wave element. The elastic-surface-wave element is provided with: a comb-shaped electrode for exciting an elastic wave and receiving a reflection based on the elastic wave, the electrode being formed on the first surface of a piezoelectric substrate; a reflecting part having a third surface and a fourth surface; a reaction field formed between the comb-shaped electrode and the reflecting part, the reaction field being loaded with the measurement object; and a propagation part formed between the reflecting part and the second surface. The third surface of the reflecting part is formed between the comb-shaped electrode and a second surface orthogonal to the first surface in the direction of propagation of the elastic wave, the third surface being formed at a position different from the first surface in the direction of the normal to the first surface. The fourth surface connects the third surface and an end part of the first surface, and is formed perpendicularly to the normal to the first surface. From the elastic wave propagated from the comb-shaped electrode through the reaction field, reflected by the fourth surface, and received by the comb-shaped electrode, a characteristic of the measurement object is determined on the basis of an elastic surface wave isolated from a bulk wave included in the elastic surface wave reflected by the second surface and received by the comb-shaped electrode.
This surface acoustic wave sensor is provided with: a piezoelectric element, which propagates surface acoustic waves; electrodes, which perform conversion between electrical signals and surface acoustic waves; and a porous base material, which is in contact with the piezoelectric element, and is infiltrated with a liquid.
G01N 29/00 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
The present invention pertains to a radar receiver that detects or demodulates a received wave that has arrived from a target in response to a transmitted wave, and is used for detecting the target. The purpose of the invention is to be able to detect a nearby target in a stable and highly accurate manner without having a configuration that is considerably more complex than those of the prior art. The radar receiver is provided with: a receiving unit (15) that detects or demodulates a received wave that has arrived from a target in response to a wave transmitted toward the target, and is used for detecting the target; and a control unit (19) which, in a period in which the transmission wave is transmitted, sets the gain of the receiving unit (15) to a value at which the receiving unit (15) does not fall in a saturation region in a component of the transmission wave that has come around the receiving unit (15) via an antenna system used for transmitting the transmission wave.
A surface acoustic wave element and equipment for measuring the physical characteristics of a liquid material without causing short-circuit of an input electrode and an output electrode even if the element or the equipment is immersed into the liquid material of measurement object. The first surface acoustic wave element (10) has input electrodes (12, 22) surrounded by a sealing member (30a) having a circumferential wall (32a) formed on a piezoelectric substrate (54), and a top plate (34a) covering the circumferential wall (32a), and a sealing reinforcement (40a) is formed on the piezoelectric substrate (54) in parallel with a wall (42a) to face a material (52), which is to be measured and loaded on the piezoelectric substrate (54). The output electrodes (14, 24) are surrounded by a sealing member (30b) having a circumferential wall (32b) formed of photosensitive resin on the piezoelectric substrate (54), and a top plate (34b) covering the circumferential wall (32b), and a sealing reinforcement (40b) is formed on the piezoelectric substrate (54) in parallel with a wall (42b) to face the material (52), which is to be measured and loaded on the piezoelectric substrate (54).
H03H 9/25 - Constructional features of resonators using surface acoustic waves
G01N 29/00 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
A time-division duplex transmitting/receiving device which simultaneously corrects all the amplitude/phase characteristics of N transmission systems and N reception systems connected to N antenna elements. A reference signal generated by a reference signal generator is branched into N reference signals. The N reference signals are inputted into the reception systems though transmission/reception selector through the antenna transmission lines during reception. The error between the output of the reception amplitude/phase corrector and the reference signal is detected by a reception error detector. The reception amplitude/phase corrector is controlled so that the error may be zero. A part of the transmission signals are inputted into the reception systems through the antenna transmission lines during transmission. The error between the output of the reception amplitude/phase corrector and the transmission signal inputted into the transmission amplitude/phase corrector is detected by a transmission error detector. The transmission amplitude/phase corrector is controlled so that the error may be zero.
A mobile body-mounted communication device mounted in a mobile body such as a vehicle and making difficult the long-time tracking of the moving path of the mobile body. The mobile body-mounted communication device mounted in a mobile body and used for transmitting/receiving packet information is characterized by comprising a borrowing address acquiring section for acquiring lending addresses as borrowed addresses from an address management device managing lending addresses, a borrowing time information acquiring section for acquiring information representing predetermined times during which the borrowing addresses can be used from the address management device, and a transmitting section for transmitting packet information including information on a borrowing address out of the borrowing addresses and the mobile body during the predetermined borrowing times determined for the borrowing addresses.
A uniform charge/discharge circuit in which deviations in voltage among capacitor groups are suppressed rapidly when the capacitor groups of a plurality of uniform charge/discharge circuits are connected in series. The uniform charge/discharge circuit (1a) comprises electric double layer capacitors (C11a, C12a) connected in series, a first energy transport circuit having windings (L11a, L12a) and first switches (SW11a, SW12a), and output terminals (T11a, T12a) connected in parallel with the opposite end portions of the electric double layer capacitors (C11a, C12a) connected in series. The uniform charge/discharge circuit (1a) further comprises a second energy transport circuit having a winding (Lc1a) coupled magnetically with the windings (L11a, L12a) and a switch (SW1a) connected in series with the winding (Lc1a) and subjected to switching control in synchronism with the switches (SW11a, SW12a), and extension terminals (Tc11a, Tc12a) connected in parallel therewith.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
38.
RELAY DEVICE AND BROADCAST SYSTEM WITH USE OF THE SAME
A receiving filter (12) and a receiving amplifier (14) receive an OFDM signal that channels are multiplexed in frequency. An FFT unit (70) carries out Fourier transform processing for the received OFDM in a lump so as to generate a plurality of sub-carrier signals. A changing unit (72) changes dispositions of the generated sub-carrier signals while packaging sub-carrier signals included in one channel. An IFFT unit (74) carries out inverse Fourier transform processing for a plurality of the changed sub-carrier signals so as to generate a new OFDM signal. A transmitting amplifier (24) and a transmitting filter (26) transmits the newly generated OFDM signal.
The impedance within a waveguide in a slot antenna is matched. A slot antenna (100) has an input waveguide (10). The input waveguide (10) receives power supply from the aperture plane. A stepped structure is provided within the input waveguide (10). The structure forms an ascending step while approaching the plane provided with a slot. The step height and length of the ascending step are so adjusted that the impedance in the plane of the ascending step is matched with the impedance in the aperture plane.
Realized are an equivalent charging/discharging circuit and an equivalent charging/discharging system, which can quickly average charged voltages between capacitors and which have their constitutions simplified. These circuit and system comprise an N-number of windings connected in series, a (N + 1)-number of change-over switches, which include common terminals and first and second switching terminals selectively connected with those common terminals and which are connected with not only the two end portions of a storage means group connected in series with the common terminals but also common connection portions between the storage means, and charging/discharging electric paths including first charging/discharging electric paths, which connect the first to N-th storage means in parallel with the first to N-th windings through the individual common terminals and the individual first switching terminals, and second charging/discharging paths, which connect the first to N-th means in parallel with the N-th to first windings in parallel through the individual common terminals and the individual second switching terminals.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
A relay transmitter apparatus wherein a single constituent part is used to process a plurality of digital modulated signals occupying different frequency bands. A frequency converter (16a) converts the frequency band of a signal received via a reception antenna (10) and a reception amplifier (14), and inputs the resultant signal to an analog input/output filter (18a). The analog input/output filter (18a) passes a digital modulated signal, while attenuating an analog modulated signal. The analog input/output filter (18a) inputs a band-limited signal to a frequency converter (22a). The frequency converter (22a) converts the frequency band of the input signal. The frequency-band-converted signal is then transmitted via a transmission amplifier (24), a transmission filter (26) and a transmission antenna (28).
Provided is a FET bias circuit wherein a bias voltage can be applied to an amplifying element FET in a FET amplifying circuit without separate adjustment. A FET bias circuit is provided with a monitor element FETm wherein a gate is connected to a gate of an amplifying element FETa and a source is connected to a source of the amplifying element FETa and a drain current to the bias voltage is substantially proportional to a drain current of the amplifying element FETa. Furthermore, by applying a bias voltage to a monitor element FETm to have a drain current flowing in the monitor element FETm in a prescribed operation class, a constant bias circuit, which applies a bias voltage to have the amplifying element FETa in a prescribed operation class, is provided.
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Japan)
JAPAN RADIO CO., LTD. (Japan)
Inventor
Moriyoshi, Akihiro
Tasoe, Shozo
Abstract
Provided is a damage evaluation apparatus capable of evaluating the damage of an asphalt mixture or the like non-destructively for a short time and in a precise manner. This apparatus turns a sample (S) and irradiates it at every predetermined angles with an X-ray so that it detects the transmitted X-ray with an X-ray detector (104). An image reconstruction unit (122) creates multiple sheets of slice image data reconstructing the inside state of the sample (S) by using the detection results of the X-ray detector (104). An image processing unit (124) creates three-dimensional CT image data of the inside of the sample (S) with the slice image data created by the image reconstruction unit (122). A cavity analyzing unit (126) calculates the quantitative data of the inside state of the sample (S) with a predetermined calculation algorithm by using the slice image data created by the image reconstruction unit (122). A damage decision unit (128) decides the damage state in accordance with a predetermined decision standard by using the analysis result of the cavity analyzing unit (126).
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01V 5/00 - Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
A sequence deciding part (10) acquires information of other ships from other-ship information signals (I), and decides the sequence of information elements of the other-ship information in descending order of probabilities of approaching the local ship. A ship selecting part (12) selects, based on the sequence of information elements decided by the sequence deciding part (10), another ship to be called up. A call-up signal generating part (14) inserts, into a call-up signal, an identification number of the other ship selected by the ship selecting part (12). The call-up signal generating part (14) then transmits the call-up signal to the other ship via a radio communication part (30) and an antenna (16).
A plurality of capacitor cells (10) are layered to form a cell group. On the top of each capacitor cell (10), a pair of electrode plates (10b) is formed to protrude upward. The adjacent electrode plates (10b) are connected to each other. A connection piece (20) protruding upward is attached to each of the electrode plates (10b). The connection piece (20) is connected to a circuit substrate (30). Thus, it is possible to effectively make a connection between the cell group of the capacitor cells (10) and the circuit substrate (30).
H01G 9/00 - Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
H01G 11/00 - Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
H01G 11/10 - Multiple hybrid or EDL capacitors, e.g. arrays or modules
A triplate planar slot antenna (100) formed by laying a ground plate (110), a lower layer side dielectric layer (120), a lower layer side copper-clad film substrate (130), an upper layer side dielectric layer (140), a slot plate (150) and an upper layer side copper-clad film substrate (160) sequentially from the bottom side, wherein a lower layer side copper foil piece (132) is secured to the surface of a lower layer side insulating film (131) by a joining technique not using adhesive, and an upper layer side copper foil piece (162) is secured to the surface of an upper layer side insulating film (161) by a joining technique not using adhesive. In a state where the copper foil pieces (132, 162) are removed, each insulating film (131, 161) has a dielectric constant in the range of 2.0-4.0, a tan&dgr; in the range of 0.001-0.01, and a thickness of 25 騜m or less.
A closed type capacitor (1) includes: an external container (10) which cuts off gas; a pair of polarized electrodes contained in the external container (10); a separator arranged between the electrodes; and a non-aqueous electrolytic liquid containing electrolyte and a non-aqueous organic solvent if necessary. The external container (10) has an opening (10A) for communication between inside and outside the container and a valve mechanism (13) which is arranged to cover the opening (10A) and which is opened and closed by the pressure difference between the inside and outside the container (10). The electrolyte contains more than 30 mass % of ion liquid. This closed type capacitor can minimize separation of electrolyte in the valve path.
patents
