For calibrating high frequency based field devices, a first switching unit is provided between the antenna arrangement and the transmission amplifier and receiving amplifier of the field device. For ascertaining the corresponding calibration factors, the first switching unit can assume switch positions at which the signal production unit and/or the evaluation unit are/is connected with the antenna arrangement, and at which the transmission path and/or the receiving path are/is connected with an attenuation element via which the transmission path is connectable with the receiving path. An evaluation unit of the field device ascertains at least at these switch positions the corresponding characteristic variable to use these in the later measurement operation as calibration factors. Advantageous with this kind of calibration of the invention is that possible couplings of the amplifiers are compensable.
The present disclosure relates to a measuring device including a measuring pipe for conducting a flowable medium. The measuring pipe has an inner lateral surface is designed to be, at least in portions, electrically insulating, and at least one monitoring electrode. The at least one monitoring electrode is arranged on the electrically insulating portion of the inner lateral surface in a medium-contacting manner. The measuring device also includes a measuring apparatus for determining a process property of the medium, and an abrasion detection device which is designed to determine at least one variable corresponding to an abrasion of on the at least one monitoring electrode.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
A calibration system and methods for flow metering technologies integrates a known primary reference standard (e.g., a gravimetric scale), configured to determine a mass of calibration fluid, in parallel with surrogate secondary masters (e.g., Coriolis effect flowmeters) connected via an adjustable flowpath having a closed loop mode, including a meter bank, a pump and a measuring section, and an open loop mode, including a reservoir, the meter bank, the pump, the measuring section and the primary reference standard, which enables calibration duality and redundant meter under test confirmation of calibration factors. The disclosed systems and methods enable life cycle assurance of the primary reference standard and the secondary masters' standard reliability and reproducibility over time and, as a redundant system, enable calibration of multiple flow metering technologies, such as, for example, volumetric, mass, density, viscosity and Reynolds number-reliant technologies, in one homogenous system.
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
A method for determining a deposit property of a variable deposit on an end face of a first microwave antenna of an assembly for determining a property of a multiphase medium that is to be conveyed, wherein the first microwave antenna is arranged in a first receptacle of the measuring pipe in a medium-contacting manner, wherein the method comprises emitting an excitation signal by means of the first microwave antenna, wherein the excitation signal comprises a sequence of high-frequency signals; receiving a reflected excitation signal by means of the first microwave antenna; determining a first test quantity on the basis of the reflected excitation signal; and determining on the basis of the first test quantity the deposit property of the variable deposit, in particular a variable dependent on a deposit thickness of the variable deposit.
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
The present disclosure relates to a magnetic-inductive flow meter including a measuring pipe having a measuring pipe body which electrically insulates portions thereof. A device generates a magnetic field that penetrates the measuring pipe body and detects an induced voltage in the medium, which is a function of a velocity of flow. A monitoring device detects damage to the measuring pipe body and comprises at least one electrically conductive conductor. The conductor is separated from the measuring pipe volume by a region of the measuring pipe body when the measuring pipe body is intact. The monitoring device comprises a measuring circuit electrically connected to the conductor and is designed to measure values of a measured variable which is dependent on an impedance of the conductor. The measuring circuit then compares each of the measured values with a reference value or a target value range.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
An antenna for high-frequency based measuring devices for determining a dielectric value of media is based on a high-frequency waveguide. The high-frequency signal is coupled in or out via a coaxial conductor that runs orthogonally through the axis of the high-frequency waveguide for this purpose. The conductor termination for the coaxial conductor extends extensively beyond the high-frequency waveguide in such a way that the coaxial conductor forms a defined capacitance in this region. In this way, the coaxial conductor is optimally matched to the high-frequency waveguide without having to integrate additional electrical components for this purpose.
A vortex flow meter comprises a measuring tube; a bluff body arranged in the measuring tube; a sensor device, having a paddle, a sensor main body and a piezo element, and an electronic operating circuit. The electronic operating circuit has a measuring circuit comprising an operational amplifier and a capacitor. The first capacitor forms a feedback between the output and the measurement input, wherein the reference input can be supplied with a first reference voltage. The measurement circuit has a first switch, wherein the electronic operating circuit is designed to connect the piezo element via the first switch to the measurement input of the operational amplifier and to charge it with a first charging voltage by means of a second switch position. The electronic operating circuit derives an information relating to a state of the piezo element from a discharge process of the piezo element.
G01F 1/32 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques par détection des effets dynamiques de l’écoulement utilisant des débitmètres à tourbillons
G01F 1/325 - Moyens de détection de quantités utilisées comme variables de substitution corrélées à l’effet des tourbillons
A process monitoring device includes: a measuring tube arrangement including a measuring tube; a receptacle module including a receptacle, wherein the measuring tube module is insertable into the receptacle and releasably mechanically connectable to the receptacle module; and a system for biotechnological applications, wherein the system includes a housing with a wall delimiting an interior, the wall having a cover with an opening, wherein the receptacle extends through the opening into the interior in a receiving direction, wherein the receptacle module is arranged in the opening that the receiving direction has a vector component opposite to the direction of gravity, such that a dead volume in the measuring tube and/or in a distributor piece which is attached to the measuring tube, when the measuring tube module is empty, is less than 20%.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
9.
CORIOLIS MASS FLOW METER AND METHOD FOR DETERMINING VARIABLES INFLUENCING THE TOTAL ZERO POINT ERROR OF THE METER, METHOD FOR DETERMINING THE TOTAL ZERO POINT ERROR AND OPERATING METHOD FOR SAME
A method for determining variables influencing a total zero point error of a Coriolis mass flow meter comprises: exciting a vibration of a bending vibration mode; measuring a first total zero point error T at a flow of zero; ascertaining a first damping value D of the vibration of the bending vibration mode; measuring an exciter-independent zero point error I during a decaying vibration of the bending vibration mode at a flow of zero; ascertaining a first exciter-dependent contribution E to the first total zero point error T based on the first total zero point error T and based on the exciter-independent zero point error I; and ascertaining a sensitivity factor S for the bending vibration mode based on the first exciter-dependent contribution E to the total zero point error T and based on the first damping value D.
A sensor includes an oscillator having a measuring tube for a medium, an exciter array having two exciter assemblies, an inlet-side and an outlet-side sensor array, and a measuring and operating circuit for driving the exciter array and detecting the sensor arrays. A first of the exciter assemblies is secured to a measuring tube, and the measuring tube is intended to be excited to vibrate in relation to a second of the exciter assemblies. A center of gravity of the first exciter assembly lies in a measuring tube transverse plane in relation to which the measuring tube runs mirror-symmetrically. The exciter array comprises an electrodynamic exciter and a compensating mass, where the electrodynamic exciter is designed to exert an exciter force, which acts between the first and the second exciter assembly, on the measuring tube. The effective center of the exciter force is located outside the measuring tube transverse plane.
A modular Coriolis flowmeter includes: a measuring tube module, including a measuring tube for guiding the medium, an excitation magnet on a vibration exciter for exciting the measuring tube, and a sensor magnet on a vibration sensor for detecting a vibration of the measuring tube; a receiving module including a receptacle for receiving the measuring tube module, an excitation coil on the vibration exciter, a sensor coil on the vibration sensor, and a receiving module body, including a ferromagnetic material and an opening, wherein a coil holder for the excitation coil and/or sensor coil is disposed in the opening, the coil holder including a coil holder body including an electrically insulating material.
A measuring transducer includes: a transducer module including a housing and a coil within and connected with the housing; and, set in the transducer module, a transducer module including a tube and a magnet secured on a middle segment of the tube. The tube wall is so formed that a directrix of a channel surface of the middle segment extends outside a first reference plane of the measuring transducer defined by first and fourth reference axes, and the magnet is secured on the middle segment such that a second reference plane of the measuring transducer defined by second and fourth reference axes is parallel to a third reference plane defined by third and fifth reference axes or that the second and third reference planes intersect one another to form an angle of intersection of no more than 1°.
A process monitoring device includes: a measuring tube module having at least one measuring tube through which a medium can flow; a receptacle module having a receptacle, wherein the measuring tube module can be inserted into the receptacle, wherein the measuring tube module can be mechanically separably connected to the receptacle module; and a system for biotechnological applications, wherein the system has a housing, wherein the housing has a housing wall, which delimits a housing interior, wherein the housing wall has a cover, wherein the cover has an opening, wherein the receptacle module, in particular the receptacle, extends through the opening into the housing interior.
A method for determining a coating property of a variable coating on an inner circumferential surface of a measuring tube includes emitting an excitation signal from the first microwave antenna, wherein the excitation signal comprises a sequence of high-frequency signals; receiving the excitation signal by the second microwave antenna; determining a first test variable from the received excitation signal and/or from an integral transform of the received excitation signal, wherein the first test variable is characteristic of the propagation of the excitation signal along a first propagation path, wherein the first propagation path describes an at least partial propagation of the excitation signal by the variable coating on the inner circumferential surface; and determining the coating property of the variable coating, in particular a variable dependent upon a coating thickness of the variable coating, based upon the first test variable.
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
15.
METHOD AND MEASURING DEVICE FOR DETERMINING A VISCOSITY MEASUREMENT VALUE, AS WELL AS A METHOD AND MEASURING ARRANGEMENT FOR DETERMINING A VOLUMETRIC FLOW MEASUREMENT VALUE
A method for determining a viscosity measurement value of a medium conducted within an oscillatory measuring tube includes exciting at least one oscillation mode of the measuring tube; determining a natural frequency of the oscillation mode; determining the density of the medium; determining the damping of the oscillation mode; and determining the viscosity measurement value depending on the density, the natural frequency, and the damping of the oscillation mode, wherein the viscosity measurement value is determined, depending on a specification of the type of medium, with a model corresponding to the specification.
G01N 11/16 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement en déplaçant un corps à l'intérieur du matériau en mesurant l'effet d'amortissement sur un corps oscillant
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
G01F 15/02 - Compensation ou correction des variations de pression, de poids spécifique ou de température
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
16.
MEASURING TRANSDUCER OF A MEASURING DEVICE, AND MEASURING DEVICE
A measuring transducer includes: a measuring tube arrangement having at least one measuring tube for conveying a flowable medium; at least a first exciter component of an oscillation exciter for exciting the at least one measuring tube to execute oscillations; at least a first sensor component of an oscillation sensor for registering oscillations of the at least one measuring tube; a fixing body arrangement, which is connected with the at least one measuring tube and via which a releasable connection with a support apparatus can be made; a connecting apparatus for releasable connecting of the measuring tube arrangement with a process line; and a fastener apparatus for forming a shape-interlocking and/or force-interlocking connection between the connecting apparatus and the fixing body arrangement.
A density measurement reading of a medium is determined using a Coriolis mass flow transmitter with two oscillators with pairs of measuring tubes arranged one above the other in parallel flow and leading into collectors. The mounting of the transmitter in the pipeline causes mechanical voltages that influence the oscillators via the collectors. The method includes excitation of a vibration mode of the oscillators and a determination of the natural frequency of the excited vibration modes. The method also includes a determination of a preliminary density measurement reading based on the natural frequencies and a deviation between the preliminary density measurement readings. A corrected density measurement reading is determined using a model, which determines and corrects the influence of mechanical voltages on the density measurement based on the deviation.
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
18.
Connector apparatus for a field device as well as field device with such a connector apparatus
A connection apparatus comprises includes: a platform,; a plug connector having a plug connector part secured to the platform and electrically connected to the circuit of the field device and a plug connector part connectable with the a connection cable and complementary to the first plug connector part, as well as; and a lid held movably moveable relative to the platform for at least partially covering the plug connectorformed by connecting the plug connector parts. The lid is swingable between a first end position, in which the lid at least partially covers the plug connector, and a second end position, and is additionally adapted in at least one an open position located between the first end position and the second end position to expose the plug connector such that the plug connector part can be separated from the plug connector part, as well as and, at least in the first end position, to secure the plug connector part connected with the plug connector part.
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 13/639 - Moyens additionnels pour maintenir ou verrouiller les pièces de couplage entre elles après l'engagement
H01R 43/26 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour engager ou séparer les deux pièces d'un dispositif de couplage
G01R 1/04 - Boîtiers; Organes de support; Agencements des bornes
H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p.ex. haute température, rayonnements, vibrations, environnement corrosif, pression
H01R 24/30 - Pièces de couplage portant des broches, des lames ou des contacts analogues, assujetties uniquement à un fil ou un câble avec des contacts supplémentaires de mise à la terre ou de blindage
The present disclosure relates to a magnetic-inductive flowmeter, comprising: a measuring pipe for conducting a medium, wherein the measuring pipe comprises an electrically insulating measuring pipe body; a device for generating a magnetic field that penetrates the measuring pipe body; a device for detecting an induced voltage, which is a function of a flow rate; a reference electrode; an electrode assembly for detecting damage to the measuring pipe body, wherein the electrode assembly is electrically insulated from the reference electrode and/or the medium by the measuring pipe body; a measuring circuit configured to measure a variable that is a function of an electrical impedance between the electrode assembly and the reference electrode.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
A flow divider comprises a lumen having perpendicular, symmetry planes intersecting in an axis of inertia connecting the ends. Cross sectional area have radii extending from a geometric center of gravity to the wall and lying at an angle φ (−180°≤φ≤180°) to a reference axis and being perpendicular to its axis of inertia, wherein each radius lying at an angle φ=0° to the relevant reference axis points away from the symmetry plane, and fulfills a formula fi(φ, Pi) associated with its cross sectional area and defined by a coefficients set Pi (Pi=[ai bi m1i m2i n1i n2i n3i]) corresponding to the flow divider opening:
A flow divider comprises a lumen having perpendicular, symmetry planes intersecting in an axis of inertia connecting the ends. Cross sectional area have radii extending from a geometric center of gravity to the wall and lying at an angle φ (−180°≤φ≤180°) to a reference axis and being perpendicular to its axis of inertia, wherein each radius lying at an angle φ=0° to the relevant reference axis points away from the symmetry plane, and fulfills a formula fi(φ, Pi) associated with its cross sectional area and defined by a coefficients set Pi (Pi=[ai bi m1i m2i n1i n2i n3i]) corresponding to the flow divider opening:
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A flow divider comprises a lumen having perpendicular, symmetry planes intersecting in an axis of inertia connecting the ends. Cross sectional area have radii extending from a geometric center of gravity to the wall and lying at an angle φ (−180°≤φ≤180°) to a reference axis and being perpendicular to its axis of inertia, wherein each radius lying at an angle φ=0° to the relevant reference axis points away from the symmetry plane, and fulfills a formula fi(φ, Pi) associated with its cross sectional area and defined by a coefficients set Pi (Pi=[ai bi m1i m2i n1i n2i n3i]) corresponding to the flow divider opening:
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in such a manner that the radii R4(φ) of a cross sectional area of the lumen fulfills a formula f4(φ, P4) defined by a coefficients set P4=[a4 b4 m14 m24 n14 n24 n34], with a4=(0.95 . . . 1), b4=(0.45 . . . 0.7), m14=4, m24=4, n14=3.0, n24=n14 and n34=(3 . . . 4).
The present disclosure relates to a modular measuring device including: a measuring tube module, wherein the measuring tube module includes a fixing body arrangement; an oscillation exciter; at least one oscillation sensor; and a support module including a seat, wherein the measuring tube module is arrangeable in the seat of the support module, wherein the support module includes a fixing apparatus, wherein the fixing apparatus includes an at least sectionally eccentrically embodied shaft, wherein the fixing apparatus, especially the shaft, is adapted to clamp the measuring tube module via the fixing body arrangement in the seat and to connect the measuring tube module mechanically releasably with the support module.
A Coriolis flow meter, includes: a measuring tube arrangement with at least one measuring tube and a fixing body arrangement; at least one oscillation exciter and at least one oscillation sensor; a support apparatus with seat and fixing apparatus, wherein the fixing apparatus has at least one swingable fixing element, wherein the fixing apparatus is adapted to connect the measuring tube arrangement, for example, the at least one measuring tube, via the fixing body arrangement mechanically releasably with the support apparatus body, wherein the at least one fixing element is adapted in the case of connecting the measuring tube arrangement with the support apparatus body to exert a bending force on the fixing body arrangement for elastically bending the fixing body arrangement.
The coil comprises a coil carrier, a coil wire at least partially surrounded by an insulating layer and wound around the coil carrier, as well as a protective cover layer at least partially covering the coil wire wound around the coil carrier. The coil wire is composed, at least partially, of silver, the insulating layer surrounding the coil wire is composed, at least partially, of a ceramic material, and the protective cover layer is composed, at least partially, of a ceramic material and/or a glass.
A measuring transducer has a vibration element, an electromechanical oscillation exciter, and a sensor for registering mechanical oscillations at a first measuring point and providing oscillation signal representing movements of the vibration element, and a housing for the measuring transducer. The oscillation exciter, the first oscillation sensor and the vibration element are arranged within the housing. The method includes positioning a (test-)magnetic for producing a (test-)magnetic field causing vibration for producing a test signal, using the test signal for ascertaining a characterizing number value, which quantifies an oscillation characterizing number, and comparing the characterizing number value with threshold values for the oscillation characterizing number to detect a disturbance of the measuring system, when the characterizing number value exceeds a corresponding threshold value, or has left a value range bounded by the threshold value.
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
25.
CORIOLIS MEASURING TRANSDUCER, AND CORIOLIS MEASURING DEVICE
A Coriolis measuring transducer comprises a pair of measuring tubes; an exciter; at least two sensors; and two manifolds. Each measuring tube has a first outer measuring tube bend and a second outer measuring tube bend. Each measuring tube pair has a first group of at least two fixing elements and a second group of at least two fixing elements. The fixing elements have, along the measuring tube centerline, a first separation from outer ends of the measuring tube bends of at most 0.7 bend length. The outer measuring tube bends have, in each case, at least one stiffening element, wherein the stiffening elements are arranged between the groups of fixing elements, wherein the stiffening elements have, in each case, a second separation from an inner end of their measuring tube bend of at least 0.2 bend length.
A measuring device for determining a process variable of a medium includes a housing comprising a housing body with an inner surface. The measuring device includes a temperature measuring apparatus comprising a first temperature sensor configured to determine a first temperature value, and an evaluation circuit configured to determine a medium temperature as a function of the first temperature value. The measuring device also includes a rigid printed circuit board having a resilient printed circuit board component. The first temperature sensor is arranged on the printed circuit board component. The printed circuit board component at least partially touches the inner surface of the housing body.
G01K 1/14 - Supports; Dispositifs de fixation; Dispositions pour le montage de thermomètres en des endroits particuliers
G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler
The measuring system comprises a vibration-type transducer (10) and electrically coupled measuring system electronics unit (20) for controlling the transducer and evaluating vibration measurement signals provided by the transducer. The exciter arrangement has a vibration exciter (31) which is positioned and aligned such that a drive offset (ΔE) is no more than 0.5% of the tube length. The measuring system electronics (20) are configured to supply electrical power to the vibration exciter (31) by means of an electrical drive signal (e1) having a temporally-variable electrical current and to provide the drive signal (e1) at least intermittently with a sinusoidal (second useful) current (eN2) having a (second) (AC) frequency, in order to monitor a quality of the measured substance based upon a corresponding (second) useful signal component (s1N2; s2N2) of at least one of the vibration measurement signals (s1, s2).
A method includes: determining a wall temperature of a wall enclosing a lumen of a flow line; determining a density, a viscosity, a thermal conductivity, a thermal capacity, and a pressure differential of a medium to be measured flowing in the line; determining a characteristic number value for the medium, which characterizes a heating of the medium flowing in the line as a result of dissipation and is a function of an Eckert number, a Prandtl number, and a pressure loss coefficient of the line as well as line-specific first, second and third exponents; and determining a temperature of the medium using the characteristic number value and the wall temperature. A measuring system for the method includes: a temperature sensor thermally coupled to a lateral surface of the wall and configured to generate a temperature measurement signal; and an operating electronic system electrically connected to the temperature sensor.
G01K 1/143 - Supports; Dispositifs de fixation; Dispositions pour le montage de thermomètres en des endroits particuliers pour la mesure de la température de surfaces
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
A measuring system includes a vibration-type transducer including a tube and measuring system electronics electrically coupled to a vibration exciter and a sensor assembly, wherein at a drive point, the vibration exciter is positioned such that a drive offset is no more than 3 mm and/or less than 0.5% of the tube length, and wherein a vibration node of a second or higher order, lies within the reference cross-sectional area, and wherein the measuring system electronics is configured to both provide a drive signal with a sinusoidal current having a frequency such that the frequency deviates from a resonant frequency of a vibration mode of a second order naturally intrinsic to the tube by less than 1% of the resonant frequency and/or by less than 1 Hz, and to perform a self-diagnosis of the measuring system based on a corresponding signal component of at least one vibration measurement signal.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
The measuring system comprises a vibration-type transducer (10) and measuring system electronics (20) electrically coupled to the transducer (10) for controlling the transducer and for evaluating vibration measurement signals (s1, s2) provided by the transducer. The exciter assembly comprises a vibration exciter (31) which is designed to convert electrical power with an electrical current that changes over time into mechanical power, in such a way that, at a drive point, formed by the vibration exciter on the tube that is mechanically connected to the vibration exciter, a drive force that changes over time acts on the tube, wherein the vibration exciter (31) is positioned and designed such that a drive offset (ΔE), namely a smallest distance between a drive cross-sectional area of the tube surrounded by a notional circumferential line of the tube intersecting the drive point and a predefined reference cross-sectional area of the tube, is no more than 3° mm and/or less than 0.5% of the tube length, and wherein a vibration node of vibration movements formed between two vibration antinodes of said vibration movements of the at least one tube in a vibration mode of a second or higher order (deviating from a vibration mode of a first order) lies within the reference cross-sectional area. The measuring system electronics (20) is designed to feed electrical power into the vibration exciter (31) by means of an electrical drive signal (e1), having an electrical current that changes over time, in such a way that the tube performs forced mechanical vibrations with one or more vibration frequencies specified by the drive signal (e1), wherein the measuring system electronics both provides the drive signal (e1) with sinusoidal (useful) current components (eN1, eN2) having an (alternating current) frequency (feN1) or an (alternating current) frequency (feN2), in such a way that the (alternating current) frequency (feN1) deviates from a resonant frequency (f2n+1) of a vibration mode of an odd-numbered order naturally intrinsic to the tube and the (alternating current) frequency (feN2) deviates from a resonant frequency (f2n+2) of a vibration mode of an even-numbered order naturally intrinsic to the tube by less than 1% and/or by less than 1 Hz, and also determines measurement values for at least one flow parameter of a measuring material guided in the transducer based on corresponding useful signal components (s1N1; s2N1; s1 N2; s2N2) of at least one of the vibration measurement signals (s1, s2).
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
31.
ULTRASONIC MEASURING DEVICE AND METHOD FOR PRODUCTION THEREOF
An ultrasonic measuring device for measuring properties of a medium located in a measuring tube includes a measuring tube wall and a measuring tube lumen. The measuring tube wall has at least one acoustic region designed to be excited into Lamb oscillations. A pair of ultrasonic transducers are located in a coupling region and are designed to excite Lamb oscillations or to detect Lamb oscillations in the respective coupling regions. The device also includes an electronic measuring/operating circuit. A supporting device is designed to support at least parts of the acoustic region against media pressure, and at least one supporting member is designed to absorb forces generated by media pressure. The supporting member has at least one decoupling device which is designed to reduce ultrasonic input from at least one associated acoustic region into the supporting member, and vice versa.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 1/667 - Dispositions de transducteurs pour les débitmètres à ultrasons; Circuits pour faire fonctionner les débitmètres à ultrasons
32.
METHOD FOR INTEGRATING AN AUTOMATION TECHNOLOGY FIELD DEVICE IN A DISTRIBUTED LEDGER
An automation technology field device includes operating electronics and a plurality of parameters. The operating electronics are designed to operate the field device based on the parameters and obtain and process data based on the parameters. A firmware is a software container allocated to the operating electronics. The software container is designed to execute the installed code to establish, using the code, a communication connection to a distributed ledger via at least one of the outputs is a higher-level communication network, to integrate the field device in the distributed ledger-and to process and/or combine at least one part of the obtained and processed data into result data and to transmit the result data to the distributed ledger.
The present disclosure relates to a process automation field device, comprising: a container for receiving and/or conducting a medium, the container having an outer surface; a measuring apparatus for determining a process variable of the medium; electronic components for operating the measuring apparatus; and a housing including a housing body, wherein: the measuring apparatus and the electronic components are disposed in the housing; the housing body is disposed on the outer surface; the housing body comprises a composite material; the measuring apparatus and the electronic components are at least partly surrounded by the composite material; and the composite material comprises a polymer matrix and an additive, which comprises at least one chemical compound including an oxidized transition metal from the fourth group of the periodic table. The present disclosure also relates to a method for producing the field device and to use of the additive to improve adhesion.
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
METHOD FOR DETERMINING A DENSITY MEASUREMENT VALUE OR A MEASUREMENT VALUE OF A DENSITY-DEPENDENT MEASURAND, AND CORIOLIS MASS FLOWMETER FOR PERFORMING THE METHOD
A method includes registering a first mass flow rate portion measurement value ṁ1 of a first flow portion through measuring tubes of a first oscillator and a second mass flow rate portion measurement value ṁ2 of a second flow portion through measuring tubes of the second oscillator. A sum of the two mass flow rate portion measurement values gives a mass flow rate total measurement value. The method also includes registering first and second density portion measurement values ρ1, ρ2 of the medium in the flow portions and calculating the effective density measurement value ρeff as a function of the density portion measurement values ρ1, ρ2 with weightings dependent on the mass flow rate portion measurement values ṁ1, ṁ2. The different weighting functions are applied for ascertaining the weightings as a function of the mass flow rate portion measurement values.
A magnetically inductive flow measuring probe comprises a housing that is adapted to be exposed to the medium; two measuring electrodes arranged in a housing end section for forming a galvanic contact with the medium and for sensing a voltage induced in the flowing medium; and a means for producing a magnetic field passing through the housing end section. The means includes a coil arrangement and a field guide body. The field guide body comprises two field guide body legs connected with a coil core, extending to a front section of the housing and adapted to serve as field guideback. Orthogonal projections of the measuring electrodes and the field guide body onto a cross sectional plane are disjoint.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
A clamp-on ultrasonic flowmeter includes pairs of ultrasonic transducers arranged on an exterior of a pipeline, and an electronic measuring/operating circuit for operating the transducers and for registering and evaluating measurement signals and for providing measured values of volume flow or flow velocity. The pairs are implemented as 1-traverse or 2-traverse pairs. One-traverse pairs are arranged on opposite sides of the pipeline, and 2-traverse pairs are arranged on a same side of the pipeline. At least three pairs are arranged on the pipeline and are distributed peripherally. Adjoining pairs of a number of pairs have an inner angle down to a minimum inner angle (MIA) between one another measured about a pipeline axis, which minimum inner angle obeys the following relationship:
A clamp-on ultrasonic flowmeter includes pairs of ultrasonic transducers arranged on an exterior of a pipeline, and an electronic measuring/operating circuit for operating the transducers and for registering and evaluating measurement signals and for providing measured values of volume flow or flow velocity. The pairs are implemented as 1-traverse or 2-traverse pairs. One-traverse pairs are arranged on opposite sides of the pipeline, and 2-traverse pairs are arranged on a same side of the pipeline. At least three pairs are arranged on the pipeline and are distributed peripherally. Adjoining pairs of a number of pairs have an inner angle down to a minimum inner angle (MIA) between one another measured about a pipeline axis, which minimum inner angle obeys the following relationship:
MIA=360°/(T*N*F(T,N))
A clamp-on ultrasonic flowmeter includes pairs of ultrasonic transducers arranged on an exterior of a pipeline, and an electronic measuring/operating circuit for operating the transducers and for registering and evaluating measurement signals and for providing measured values of volume flow or flow velocity. The pairs are implemented as 1-traverse or 2-traverse pairs. One-traverse pairs are arranged on opposite sides of the pipeline, and 2-traverse pairs are arranged on a same side of the pipeline. At least three pairs are arranged on the pipeline and are distributed peripherally. Adjoining pairs of a number of pairs have an inner angle down to a minimum inner angle (MIA) between one another measured about a pipeline axis, which minimum inner angle obeys the following relationship:
MIA=360°/(T*N*F(T,N))
with T as number of traverses and F(T,N)=0.38+0.62*T+(0.048−0.01*T{circumflex over ( )}2)*(N−2){circumflex over ( )}2.
G01F 1/667 - Dispositions de transducteurs pour les débitmètres à ultrasons; Circuits pour faire fonctionner les débitmètres à ultrasons
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/18 - Supports ou moyens de raccordement pour les compteurs
G01P 5/24 - Mesure de la vitesse des fluides, p.ex. d'un courant atmosphérique; Mesure de la vitesse de corps, p.ex. navires, aéronefs, par rapport à des fluides en mesurant l'influence directe du courant de fluide sur les propriétés d'une onde acoustique de détection
37.
MEASURING TUBE FOR A THROUGHFLOW MEASURING DEVICE, THROUGHFLOW MEASURING DEVICE AND METHOD FOR PRODUCING A MEASURING TUBE
A measuring tube for a flow measuring means includes an essentially cylindrical measuring tube section that is composed of tantalum on at least the interior surface. At least one insert composed essentially of a noble metal is inserted into one of two end openings such that the interior surface of tantalum is in direct contact with the noble metal. In this way, hydrogen embrittlement of the measuring tube is very easily reduced. Further disclosed is a flow measuring device having a measuring tube of the invention as well as a method for producing such a measuring tube.
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
G01F 15/18 - Supports ou moyens de raccordement pour les compteurs
38.
METHOD FOR PUTTING A CORIOLIS FLOW METER INTO OPERATION
The present disclosure relates to a method for putting a Coriolis flow meter into operation, in particular a Coriolis flow meter for pharmaceutical bioprocess applications, the method comprising the method steps of: inserting the measuring tube arrangement into the receptacle of the carrier device; causing the measuring tube to vibrate by means of the excitation signal arriving at the vibration exciter and provided by the operating circuit; determining a measurement value of a state variable that is used as a measure for checking whether the measuring tube in the carrier device is in a steady state; and determining the mass flow rate measurement value when a difference between the measurement value of the state variable and a reference value of a reference variable lies below an upper limit value and exceeds a lower limit value.
A method for operating a magnetically-inductive flowmeter, wherein the magnetically-inductive flowmeter includes: a measuring tube for guiding a flowable medium; at least two measuring electrodes for detecting a flow velocity-dependent measuring voltage induced in the medium; and a magnetic field-generating device for generating a magnetic field passing through the measuring tube, wherein the magnetic field-generating device includes a coil system with at least one coil, includes determining a deviation σ of a reactance of the coil system or of a variable dependent upon the reactance of the coil system from a desired value. A magnetically inductive flowmeter is also disclosed.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
A magnetically inductive flow meter includes a housing; at least two measuring electrodes for forming a galvanic contact with the medium and for tapping an induced voltage in the medium; a device for generating a magnetic field, wherein the device is arranged in the housing, wherein the device comprises a field guiding assembly and a coil arrangement, wherein the field guiding assembly functions as a sensor electrode for capacitively determining and/or monitoring at least one process variable, in particular a fill level of the medium in the tube line or the measuring tube. The present disclosure also relates to a method for determining a fill level of a medium in a measuring tube or in a tube line using the magnetically inductive flow measuring device.
G01F 23/26 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p.ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme en mesurant des variables physiques autres que les dimensions linéaires, la pression ou le poids, selon le niveau à mesurer, p.ex. par la différence de transfert de chaleur de vapeur ou d'eau en mesurant les variations de capacité ou l'inductance de condensateurs ou de bobines produites par la présence d'un liquide ou d'un matériau solide fluent dans des champs électriques ou électromagnétiques
A magneto-inductive flow measurement device, comprises a means for producing a magnetic field with a self-inductance, wherein the means for producing the magnetic field comprises a coil arrangement; a means for sensing a measurement voltage induced in the flowable medium; an operating circuit, which is adapted to apply an operating signal on the coil arrangement, wherein the operating signal has operating signal parameters; a measuring circuit, which is adapted to determine a coil electrical current of the coil arrangement; a control circuit, which is adapted so to control at least one of the operating signal parameters that a function dependent on a self-induction value of the self-induction and a coil electrical current value of the coil electrical current does not differ from a predetermined, first desired value.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
47.
MEASUREMENT SENSOR OF A CORIOLIS FLOW METER, AND CORIOLIS FLOW METER
The present disclosure relates to a measuring transducer of a Coriolis flow meter including a measuring tube arrangement having at least one measuring tube having an inlet section and an outlet section. The measuring transducer also includes at least a first exciter component of an oscillation exciter and at least a first sensor component of an oscillation sensor. A securement body arrangement is connected with the at least one measuring tube in the inlet section and/or in the outlet section, with the securement body arrangement having at least one opening. A connecting component connecting the measuring tube arrangement with a process line, wherein the connecting component includes at least one fastener apparatus, which extends through the opening of the securement body arrangement, wherein the connecting component is connected with the securement body arrangement via the fastener apparatus at least by shape interlocking.
The present disclosure relates to a method used to monitor a Coriolis mass flow meter, which has an oscillator with at least one measurement tube, the method including: exciting the oscillator so as to cause flexural vibrations of a first antisymmetric vibration mode by an excitation signal at a resonance frequency of the first antisymmetric vibration mode; sensing a vibration amplitude of the first antisymmetric vibration mode at the resonance frequency of the first antisymmetric vibration mode; sensing a time constant of the decaying free vibrations of the first antisymmetric vibration mode; and determining a modal elastic property of the oscillator with respect to the first antisymmetric vibration mode on the basis of the vibration amplitude of the first antisymmetric vibration mode, the excitation signal, and the time constant.
The present disclosure relates to a Coriolis measuring transmitter of a Coriolis measuring device for measuring a mass flow or a density of a medium flowing through a pipe, which includes: at least one pair of measuring tubes arranged to oscillate relative to each other, wherein each measuring tube includes a centrally arranged bend, at least one driver and at least two vibration sensors; two guiding devices, each including a fluid chamber with a first opening for connection with the pipe and second openings for each measuring tube for connection with the measuring tubes, wherein the guiding devices are each formed from multiple parts, for example, formed from two parts, wherein a first part forms a pipe connecting part, and wherein at least one second part forms a measuring tube connecting part.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
50.
MAGNETICALLY INDUCTIVE FLOW MEASURING DEVICE AND METHOD FOR DETERMINING A FILL LEVEL
A magnetically inductive flow measuring probe includes a housing; at least one measuring electrode for forming a galvanic contact with the medium and for tapping an induced voltage in the medium; a device for generating a magnetic field, wherein the device is arranged in the housing, wherein the device comprises a field guide assembly and a coil arrangement, wherein the field guide assembly functions as a sensor electrode for capacitively determining and/or monitoring a fill level of the medium in the tube line or the measuring tube. The present disclosure also relates to a method for determining a fill level of a medium in a measuring tube or in a tube line using the magnetically inductive flow measuring device.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01F 23/26 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p.ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme en mesurant des variables physiques autres que les dimensions linéaires, la pression ou le poids, selon le niveau à mesurer, p.ex. par la différence de transfert de chaleur de vapeur ou d'eau en mesurant les variations de capacité ou l'inductance de condensateurs ou de bobines produites par la présence d'un liquide ou d'un matériau solide fluent dans des champs électriques ou électromagnétiques
51.
METHOD FOR OPERATING A CORIOLIS MEASUREMENT DEVICE
A method for operating a Coriolis measurement device comprises the following steps: recording the measured voltages of sensors for sensing measuring tube vibrations and creating an asymmetric sequence of values by way of the amplitudes of the measured voltages for the purpose of diagnosing the Coriolis measurement device, recording at least one stabilization variable and creating a stabilized asymmetric sequence of values based on the stabilization variable, wherein the stabilization variable is one of the following variables or a first or further temporal derivative thereof: a resonant frequency of the measuring tube containing medium or a variable derived therefrom, time or phase difference between measurement signals from the first sensor and the second sensor or a variable derived therefrom, temperature of the measuring tube wall, temperature difference between two measurement points of the measuring tube wall.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 15/02 - Compensation ou correction des variations de pression, de poids spécifique ou de température
A measuring system comprises a measuring transducer of vibration-type having a tube arrangement, an exciter arrangement, a sensor arrangement, and a measuring system electronics. The measuring system electronics is adapted in a first operating mode to supply current to the oscillation exciters whereby the tube arrangement executes wanted oscillations with an oscillation frequency predetermined by the driver signals and to receive and to evaluate oscillation measurement signals representing oscillatory movements of the wanted oscillations. The measuring system electronics is further adapted in a second operating mode to supply current to the oscillation exciters that only the tube executes wanted oscillations and the tube executes no wanted oscillations while nevertheless executing mechanical oscillations coupled with the wanted oscillations of the tube and to receive and to evaluate both oscillation measurement signals representing oscillatory movements of the wanted oscillations and also oscillation measurement signals representing oscillatory movements of the coupled oscillations.
A method for monitoring flow of a medium by means of a pressure difference measuring device and a Coriolis mass flowmeter having two oscillators, which comprise, in each case, a bent measuring tube pair, which are arranged on top of one another and connected for parallel flow between the two pressure measuring points of the pressure difference measuring device, comprising steps as follows: Registering a pressure difference between the first pressure measuring point and the second pressure measuring point; registering a first density measured value based on at least a first oscillation frequency of the first oscillator; registering a second density measured value based on at least a second oscillation frequency of the second oscillator; ascertaining a flow measured value based on the pressure difference, when a difference between the first density measured value and the second density measured value is less than a density difference limit value.
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
54.
METHOD FOR OPERATING A FLOW MEASURING POINT FOR MEDIA HAVING AT LEAST ONE LIQUID PHASE
The present disclosure relates to a method for operating a flow measuring point for media having at least one liquid phase, the flow measuring point including: a Coriolis measuring device for measuring the mass flow rate and the density of a medium flowing through a pipeline; and a pressure-difference measuring apparatus for sensing the pressure difference between a flow region arranged upstream of the Coriolis measuring device and a flow region arranged downstream of the Coriolis measuring device, wherein a flow measurement based on measured values of the pressure difference is corrected by means of measured values acquired using the Coriolis measuring device.
The present disclosure relates to a method for operating a flow measuring point for media having at least one liquid phase, the flow measuring point including: a Coriolis measuring device for measuring the mass flow rate and the density of a medium flowing through a pipeline; and a pressure-difference measuring apparatus for sensing the pressure difference between a flow region arranged upstream of the Coriolis measuring device and a flow region arranged downstream of the Coriolis measuring device, wherein a flow measurement based on measured values of the pressure difference is corrected by means of measured values acquired using the Coriolis measuring device.
The present disclosure relates to a method for operating a flow measuring point for media having at least one liquid phase, the flow measuring point including: a Coriolis measuring device for measuring the mass flow rate and the density of a medium flowing through a pipeline; and a pressure-difference measuring apparatus for sensing the pressure difference between a flow region arranged upstream of the Coriolis measuring device and a flow region arranged downstream of the Coriolis measuring device, wherein a flow measurement based on measured values of the pressure difference is corrected by means of measured values acquired using the Coriolis measuring device.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 1/50 - Moyens de correction ou de compensation
G01N 11/08 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau à travers un passage étroit, p.ex. un tube, une ouverture en mesurant la pression nécessaire à la production d'un écoulement connu
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
An electronic unit comprises a microcontroller with a control input, a control output, and a signal input; and an interface circuit with a connection terminal, a control output, a control input, and a signal output. Both the microcontroller and the interface circuit each have a first operating mode and a second operating mode. The microcontroller is designed to cause the interface circuit to operate in its first operating mode. The interface circuit is designed to convert an input signal into a derivation signal representing a derivation of the input signal over time and to generate a control signal from the derivation signal. The microcontroller is designed to cause the interface circuit to operate in its second operating mode and to receive and convert a digital input signal and to output an output signal to the microcontroller.
A method for characterizing the gas load of a medium, which comprises a liquid loaded with gas, using a measurement sensor that guides the medium in at least one vibrating measurement tube, includes: determining a speed of sound value and a resonator density value of the medium based on natural frequencies of at least two different vibration modes of the measurement tube; determining a measured pressure value for the medium guided in the measurement tube; determining a gas volume content of suspended bubbles in the medium based on the resonator density value, the speed of sound value and the measured pressure value; and determining a value for the gas volume content of free bubbles based on the resonator density value of the medium and the gas volume content of suspended bubbles.
The present disclosure relates to a method for measuring the flow of a liquid medium having variable gas content, on the basis of a differential pressure measurement by means of a differential pressure-generating primary element, through which the medium flows, which method comprises: ascertaining a differential pressure measurement value between two measuring points of the differential pressure-generating primary element; ascertaining a flow regime; ascertaining a flow rate measurement value as a function of the differential pressure measurement value and the flow regime, wherein the flow rate measurement value is ascertained by ascertaining a provisional flow rate measurement value on the basis of the differential pressure measurement value under the assumption of a first flow regime, which provisional flow rate measurement value is corrected if a second flow regime different from the first flow regime is detected.
The present disclosure relates to a method for operating a magneto-inductive flowmeter, wherein the magneto-inductive flowmeter has a measuring tube for conducting a flowable medium, at least two measurement electrodes for detecting a flow speed-based measurement voltage induced in the medium, and a magnetic field-generating device for generating a magnetic field which passes through the measuring tube, said magnetic field generating device having a coil. The method has the steps of applying a control voltage to the coil in order to generate a change in the coil current over time, and determining the change in the coil current over time in a change-over region, wherein the coil current is changed in the change-over region until a target coil current target is reached.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
59.
METHOD FOR PRODUCING A MEASUREMENT TUBE ASSEMBLY FOR A CORIOLIS FLOW METER
A method for producing a measurement tube assembly for a Coriolis flow meter includes: providing a core assembly and a mold, which define a cavity therebetween, the core assembly a core that includes a core body of a first material; filling the cavity with a second material to form a measurement tube body of the measurement tube assembly, the second material having a higher melting temperature than the first material; separating the mold and the core assembly from the measurement tube assembly melting the at a melting temperature that is below the melting temperature of the second material and above the melting temperature of the first material. The present disclosure further includes a Coriolis flow meter and to a use of a lost-core method to produce a measurement tube assembly.
The present disclosure relates to a measuring tube for conducting a flowable medium in a longitudinal direction, which includes: a measuring tube body designed to be electrically insulating, the measuring tube body including an integrally designed holder and a mounting surface for installing the measuring tube in a receiving unit in a mechanically detachable manner in a position defined by the mounting surface; at least two measuring electrodes positioned diametrically in the measuring tube body to form a galvanic contact with the medium; and at least one pole shoe formed from a single sheet metal part or from a plurality of sheet metal parts stacked in particular in the longitudinal direction of the pole shoe and connected to one another, the pole shoe being located in the holder. The present disclosure also relates to a receiving unit and a magnetic-inductive flow meter.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
G01F 15/18 - Supports ou moyens de raccordement pour les compteurs
The invention relates to a sensor of a Coriolis meter for measuring the mass flow or the density of a medium flowing through a pipe, said sensor comprising: at least one measuring tube for conducting the medium, each having an inlet and an outlet; at least one exciter for exciting measuring tube oscillations; at least two sensors for detecting measuring tube oscillations; a support body for holding the measuring tube. The sensor has an RFID temperature sensor which is designed to determine a temperature of the measuring tube, the sensor having an RF transceiver which is designed to read out the temperature sensor.
G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01K 1/143 - Supports; Dispositifs de fixation; Dispositions pour le montage de thermomètres en des endroits particuliers pour la mesure de la température de surfaces
62.
ASSEMBLY, HOUSING COVER HAVING AN ASSEMBLY OF THIS TYPE, AND FIELD DEVICE HAVING A HOUSING COVER OF THIS TYPE
An assembly comprises
An assembly comprises
circular panel an annular body; and an elastomer.
An assembly comprises
circular panel an annular body; and an elastomer.
The annular body has a panel seat surrounded by a lateral surface having a ring shaped, surrounding, outer groove bounded in a first axial direction by a first outer shoulder and bounded in an opposing, second axial direction by a second outer shoulder.
An assembly comprises
circular panel an annular body; and an elastomer.
The annular body has a panel seat surrounded by a lateral surface having a ring shaped, surrounding, outer groove bounded in a first axial direction by a first outer shoulder and bounded in an opposing, second axial direction by a second outer shoulder.
Adjoining the first outer shoulder is a guide surface having a radius monotonically increasing with separation from the first shoulder.
An assembly comprises
circular panel an annular body; and an elastomer.
The annular body has a panel seat surrounded by a lateral surface having a ring shaped, surrounding, outer groove bounded in a first axial direction by a first outer shoulder and bounded in an opposing, second axial direction by a second outer shoulder.
Adjoining the first outer shoulder is a guide surface having a radius monotonically increasing with separation from the first shoulder.
The circular panel has an outer lateral surface having a peripheral inner groove extending radially inwards.
An assembly comprises
circular panel an annular body; and an elastomer.
The annular body has a panel seat surrounded by a lateral surface having a ring shaped, surrounding, outer groove bounded in a first axial direction by a first outer shoulder and bounded in an opposing, second axial direction by a second outer shoulder.
Adjoining the first outer shoulder is a guide surface having a radius monotonically increasing with separation from the first shoulder.
The circular panel has an outer lateral surface having a peripheral inner groove extending radially inwards.
The two inner shoulders have a convex contour in which the rotational axis of the circular panel extends.
An assembly comprises
circular panel an annular body; and an elastomer.
The annular body has a panel seat surrounded by a lateral surface having a ring shaped, surrounding, outer groove bounded in a first axial direction by a first outer shoulder and bounded in an opposing, second axial direction by a second outer shoulder.
Adjoining the first outer shoulder is a guide surface having a radius monotonically increasing with separation from the first shoulder.
The circular panel has an outer lateral surface having a peripheral inner groove extending radially inwards.
The two inner shoulders have a convex contour in which the rotational axis of the circular panel extends.
The elastomer ring is clamped between both inner shoulders and both outer shoulders, whereby a shifting of the circular panel out of the annular body is prevented up to a limit loading.
The electronics comprises a load circuit, a power supply circuit having a rechargeable electrical energy storer, and a protection circuit. An input of the power supply circuit is adapted to be electrically connected with an external energy supply. Both the power supply circuit and the protection circuit have at least two operating modes. Additionally, the protection circuit is adapted in the first operating mode to monitor the cell voltage applied on the circuit input to determine whether its voltage level has exceeded a predetermined maximum value and, in given cases, automatically to deactivate the operating mode.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
G01F 1/00 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu
G01R 19/10 - Mesure d'une somme, d'une différence, ou d'un rapport
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon
64.
MEASURING TUBE ARRANGEMENT AND CARRIER UNIT OF A MEASURING DEVICE FOR DETECTING A MASS THROUGHFLOW, A VISCOSITY, A DENSITY, AND/OR A VARIABLE DERIVED THEREFROM, OF A FLOWABLE MEDIUM
A measuring tube arrangement of a measuring device for detecting a mass flow rate of a flowable medium includes: two measuring tubes for conducting the medium, wherein the measuring tubes each have an inlet and an outlet, wherein the measuring tubes are bent at least once between the inlet and outlet; a coupler arrangement for mechanically coupling the two measuring tubes, wherein the coupler arrangement has at least two coupler elements, wherein one coupler element is arranged at the inlet, and one coupler element is arranged at the outlet; two magnet arrangements, each having at least two magnets, arranged on the measuring tubes, wherein precisely one magnet arrangement is arranged on one measuring tube; and a connecting body configured to mechanically detachably connect the measuring tube arrangement to a carrier unit, wherein the connecting body is connected to the inlet and to the outlet of the respective measuring tubes.
A magnetic-inductive flow meter for determining a flow velocity-dependent measurement variable induced in a flowable medium is provided, said flow meter comprising: a measuring tube for conducting the flowable medium in a flow direction, the measuring tube comprising a carrier body, the measuring tube comprising an inlet region in which the carrier body has a first recess located on an inner side of the carrier body, the first recess extending continuously in the flow direction, the measuring tube comprising a support body for stabilizing a liner, the support body being located between the carrier body and the liner, the support body extending into the first recess and thus being interlockingly connected to the carrier body; a device located on the measuring tube for generating a magnetic field that penetrates the measuring tube; and —two measuring electrodes for tapping a measuring voltage induced in the flowable medium.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
66.
VIBRONIC MEASURING SYSTEM FOR MEASURING A MASS FLOW RATE OF A FLUID MEASUREMENT MEDIUM
The measuring system comprises a vibration-type measuring sensor, a sensor housing, a magnetic-field detector, and measuring-system electronics electrically coupled both to an oscillation exciter and to oscillation-sensing devices of the measuring sensor. The measuring sensor is inside the sensor housing and the magnetic-field detector is outside the sensor housing. The magnetic-field detector is designed to convert changes in the magnetic field into a magnetic-field signal having an amplitude dependent on a magnetic flux through the magnetic-field detector and/or on an area density of said magnetic flux. The measuring-system electronics are designed to determine, on the basis of oscillation measurement signals of the measuring sensor, the mass-flow-rate measurement values representing the mass flow rate and to at least qualitatively determine, on the basis of the magnetic-field signal, whether an external magnetic field is established inside the measuring sensor.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
67.
Method for determining an inverse impulse response of a communication channel
A method for determining an inverse impulse response of a communication channel by means of a PAM receiver comprises the following method steps: switching on the PAM receiver; if a second PAM transceiver is switched on, setting a difference between a clock frequency of the data signal and a sampling frequency of the first PAM transceiver; comparing a symbol that is output by the interpreter with a state that is supplied to the interpreter, and outputting an error value, wherein in each case a symbol associated with a sampling clock is compared with a state associated with the same sampling clock; adapting m filter coefficients of the equalizer to minimize error values; repeating the third method step and the fourth method step until an error limit value is reached.
A magnetic-inductive flow meter includes: a housing; a first and a second measurement electrode in galvanic contact with a flowing medium in a pipe; a magnetic field-generating device positioned in the housing and including a measurement circuit configured to determine a first measurement variable, and wherein measurement values of the first measurement variable are measured between two measurement electrodes or at a measurement electrode in relation to a reference potential; and an evaluation circuit configured to determine a Reynolds number and/or a kinematic viscosity value of the medium using measurement values of the first measurement variable and of a second measurement variable, which differs from the first measurement variable, wherein the measurement electrodes are positioned such that, during a test measurement, quotients of current measurement values of the first and of the second measurement variable correspond bijectively with the Reynolds number of the medium in the pipe.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement
69.
Pulse-amplitude modulation transceiver, field device and method for operating the pulse-amplitude modulation transceiver
A PAM transceiver configured to process an electrical data signal having at least three states includes an electronic circuit comprising: a data interface configured to connect to a duplex communication channel; a first circuit section connected to the data interface; and a second circuit section connected to the data interface. The first circuit section includes an equalizer for compensating for distortions in the data signal and an interpreter downstream of the equalizer for recognizing symbols. The second circuit section includes a delay unit for time-shifting the data signal and an MMA processor for recognizing a signal phase of the data signal. The first circuit section and the second circuit sections are routed to the MMA processor. The second circuit section has a finite impulse response filter configured to monotonize an impulse response of the communication channel.
The disclosure relates to a magnetically inductive flow meter for insertion into a pipeline and for determining a flow-rate-dependent measurement variable induced in the medium, comprising: a housing, a front body being arranged on an end face of the housing, which front body seals the end face of the housing; a measurement electrode arrangement for forming galvanic contact with the medium and for tapping an induced voltage in the flowing medium; a field system for generating a magnetic field that passes through the end face of the housing, the field system being arranged in the housing, the field system comprising a coil arrangement, the coil arrangement comprising a coil arrangement carrier for winding a coil wire, and the coil arrangement carrier and the front body being monolithic.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
71.
DIRECTING APPARATUS FOR ORIENTING AN ARC OF AN ARC WELDING DEVICE FOR ARC WELDING USING A MAGNETICALLY MOVED ARC, AND USE OF THE DIRECTING APPARATUS
A directing apparatus for orienting an arc of an arc welding device for arc welding, in particular for TIG welding, using a magnetically moved arc, comprising: a retaining device having an opening for receiving a welding head of the arc welding device; one or more solenoid coils for forming a magnetic field for deflecting an arc generated by a welding device in the opening; and at least two bent pole shoes comprising at least two legs for focusing the magnetic field, a first of the legs of each pole shoe being affixed to the retaining device and/or to the solenoid coil and a second of the legs being oriented at an angle of less than 130° to the first leg.
A measuring tube includes a support tube having a metal wall surrounding a lumen, a thermoplastic liner lining the support tube and a sensor element. The liner tube has an outer diameter less than an inner diameter of the support tube, and the wall of the liner tube has a fold, such that both the lumen and a lateral surface of the liner tube have a form deviating from that of a circular cylinder. The lateral surface is curved concavely. The liner tube is positioned in the lumen and heated into a viscoelastic state and deformed such that the wall of the liner tube unfolds and presses against the wall of the support tube, such that the lateral surface is curved convexly. The liner tube is cooled and a shape is formed between the liner tube and support tube for durably securing the liner tube in the support tube.
G01F 1/56 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques
The method comprises producing a measurement signal (s1) having a signal parameter, followed with a temporal change (Δx1/Δt; Δx1′/Δt) of a primary measured variable (x1) and a temporal change (Δy1/Δt) of a disturbing variable (Δ1), and producing a measurement signal (s2) having a signal parameter, followed by a temporal change (Δx2/Δt; Δx2′/Δt) of a primary measured variable (x2). The method comprises ascertaining measured values (XI) of first type representing the primary measured variable (x1) or a secondary measured variable (f(x1) Δx1′) of measured values (XII) of second type representing the primary measured variable (x2) or a secondary measured variable (f(x2) Δx2′). The method comprises using measured values (XI) of first type and measured values (XII) of second type for ascertaining an error characterizing number (Err) representing a velocity error (ΔXI/ΔXII) caused by a change of the disturbing variable (y1).
G01F 1/50 - Moyens de correction ou de compensation
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
74.
METHOD FOR ASCERTAINING A PHYSICAL PARAMETER OF A CHARGED LIQUID
A method for the measurement of a physical parameter of a liquid by means of a sensor having at least one measuring tube for conducting the liquid, wherein the measuring tube can be excited to vibrate in at least one flexural vibration mode, comprises: determining at least one current value of a vibration parameter of the flexural vibration mode; determining a measurement value of the physical parameter according to the current value of the vibration parameter, wherein the measurement value is compensated in respect of the resonator effect according to a current value for the natural frequency of the flexural vibration mode and according to the sound velocity of the liquid conducted in the measuring tube, wherein the value for the sound velocity is provided independently of the vibrations of the measuring tube.
The present disclosure relates to a method for calculating a quality pertaining to at least one measuring tube of a Coriolis measuring device for measuring a density or a mass flow of a medium flowing through the measuring tube, wherein a determination regarding a state of the measuring tube can be made by determining various vibration properties.
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 15/02 - Compensation ou correction des variations de pression, de poids spécifique ou de température
76.
ANTENNA ASSEMBLY FOR EMITTING MICROWAVES, AND MEASURING ASSEMBLY HAVING AT LEAST ONE SUCH ANTENNA ASSEMBLY
An antenna assembly for emitting microwaves comprises a dielectric hollow conductor element and a support element, wherein the hollow conductor element has an electrically conductive surface along a circumferential lateral face, the hollow conductor element has an electrically non-conductive emission face, and the hollow conductor element has a coupler receptacle. The support element contains a material having a modulus of elasticity of no less than 50 GPa. The support element surrounds the hollow conductor element at least along the lateral face. The hollow conductor element is fixed in the support element. The support element has an emission opening, and the emission face aligns with the emission opening. The hollow conductor element has a permittivity of no less than 8 at 2 GHz, the hollow conductor element containing a ceramic material, in particular aluminium oxide, zirconium oxide or titanium oxide.
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
A thermal flowmeter for measuring the mass flow rate of a medium in a measuring tube, includes: a measuring tube having a measuring tube wall; a sensor having four probes that project into the measuring tube from a main sensor body; and an electronic measuring/operating circuit designed to operate at least three probes and to generate and provide flow measurement values by operating the probes, each probe having a main probe body and an active probe body, the active probe body designed to heat the medium, to determine the temperature of the medium and/or to influence a flow of the medium in the measuring tube, wherein the main probe bodies span a rhombus on a surface of the main sensor body, and the rhombus is defined by centroid points of cross-sections of the main probe bodies.
An arrangement includes a pipeline and a Coriolis volumetric flow meter for measuring a mass flow rate of a medium flowing through the pipeline. A first pressure sensor is attached at an inlet-side of the pipeline and a second pressure sensor is attached at an outlet-side of the pipeline, or wherein a differential pressure sensor is configured to detect a difference between an inlet-side and an outlet-side. The pressure sensors and/or the differential pressure sensor are configured to measure a media pressure and to determine, for each differential pressure, a volumetric flow velocity of the medium through the pipeline. A first monitoring sensor is attached at an inlet-side portion of the pipeline and a second monitoring sensor is attached at an outlet-side portion of the pipeline, wherein the monitoring sensors are configured to monitor a measurement variable different from the media pressure to identify a static media state.
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 1/36 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression la pression ou la différence de pression étant produite par une contraction de la veine fluide
79.
Measuring device for determining the density, the mass flow and/or the viscosity of a gas-charged liquid, processing system having such a measuring device, and method for monitoring a gas-charged liquid
A measuring device for determining the density, the mass flow and/or the viscosity of a gas-charged liquid includes an oscillator, having a media-conducting measuring tube and two vibrational modes having media-density-dependent natural frequencies; an exciter for exciting the two vibrational modes; a vibrational sensor for detecting vibrations of the oscillator; and an operating and evaluating circuit to apply an excitation signal to the exciter, detect signals of the vibration sensor, determine current values of the natural frequencies of the two vibrational modes of the oscillator and fluctuations of the natural frequencies. The operating and evaluating circuit is designed to determine a first media state value, wherein the operating and evaluating circuit is furthermore designed to determine a second media state value which represents a gas charge of the medium.
G01N 9/32 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité en utilisant les propriétés d'écoulement des fluides, p.ex. l'écoulement à travers des tubes ou des ouvertures
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01N 11/04 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau à travers un passage étroit, p.ex. un tube, une ouverture
80.
Coriolis measuring transducer and coriolis measuring device
The invention relates to a Coriolis measuring transducer of a Coriolis measuring device comprising: at least one measuring tube; at least one exciter; at least two sensors; wherein at least one exciter or at least one sensor has a coil device and a magnet device, wherein the magnet device has a holder and at least a first magnet group and at least a second magnet group, wherein the holder has a body with a body length axis and a first end and a second end wherein the first end has an end surface, wherein the body has three recesses, wherein a central recess is separated, in each case, from an outer recess by, in each case, an intermediate wall, wherein each intermediate wall has an opening, and wherein the first magnet group is arranged in a first opening, and wherein the second magnet group is arranged in a second opening.
A method for determining a viscosity of a medium based on damping of an oscillation mode of a measurement tube comprises exciting oscillations of an oscillation mode; detecting a sequence of provisional damping measurement values for the measurement tube oscillation mode; and calculating target measurement values. The influence of the cross-sensitivity of the damping for the flow rate of the medium is corrected by determining rectified damping measurement values that correspond to damping when the medium is at rest and determining viscosity on the basis of the rectified damping measurement values, or correcting the influence of the cross-sensitivity of the damping for the flow rate of the medium by determining provisional intermediate values of a damping-dependent variable, determining rectified intermediate values that correspond to the intermediate values when the medium is at rest, and determining the target measurement values on the basis of the rectified intermediate values.
G01F 15/02 - Compensation ou correction des variations de pression, de poids spécifique ou de température
G01N 11/16 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement en déplaçant un corps à l'intérieur du matériau en mesurant l'effet d'amortissement sur un corps oscillant
82.
METHOD FOR OPERATING A MEASURING DEVICE WITH AT LEAST ONE OSCILLATOR, AND MEASURING DEVICE FOR CARRYING OUT SAID METHOD
A method for operating a measuring device with a measuring sensor having an oscillator, the oscillator having a vibratory measuring tube for guiding a medium, comprises: Determining a current value of a resonance frequency for a vibration mode of the oscillator; exciting a vibration out of resonance with an excitation frequency that differs from the current value of the resonance frequency; and determining the amplitude of a sensor signal that represents the vibration out of resonance. The amplitude of the sensor signal of the vibration out of resonance, a sensor signal of a vibration sensor of the oscillator, is determined by a low-pass filter the time constant of which is not less than 1000 period lengths of the vibration out of resonance. Also disclosed is a measuring device for carrying out said method.
A housing module of a field device includes: a housing including a first housing chamber and a second housing chamber separated by a partition wall; measurement/control electronics disposed in the first housing chamber; interface electronics for connecting lines for supplying energy to the field device arranged in the second housing chamber, wherein the housing includes a first wall region to receive the partition wall, the first wall region separated from the partition wall by a gap having a path length, wherein the ratio of a gap width to the path length is less than 0.02; and a securing device for limiting a range of movement of the partition wall toward the second housing chamber, wherein the housing includes a second wall region with a groove extending parallel to a cross-sectional plane of the partition wall, the securing device including an engagement device to engage in the groove.
The present disclosure relates to a Coriolis measuring sensor of a Coriolis measuring device for measuring a density or a mass flow of a medium flowing through a pipeline, including: at least one measuring tube for conducting a medium; a support body for supporting the at least one measuring tube; at least one vibration generator for generating measuring tube vibrations; at least two vibration sensors for sensing measuring tube vibrations, wherein the vibration sensors each have at least one permanent magnet and at least one sensor coil, and wherein the vibration generator in each case has at least one permanent magnet and at least one exciter coil, characterized in that the Coriolis measuring sensor includes an amplitude sensor designed to sense a vibration amplitude of the measuring tube vibrations.
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01N 9/00 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité
A magnetic-inductive flow meter includes: a measuring tube for guiding a flowable medium in a longitudinal direction; a measuring electrode arrangement for detecting a measurement voltage dependent on the flow velocity, induced in the medium, two measuring electrode groups opposite one another on the measuring tube; and a magnetic field generating device for generating a magnetic field which passes through the measuring tube and including at least two coil core groups, each having at least two coil cores, wherein a first and a second part of the measuring tube each include at least one coil core group, wherein two radii, which intersect the coil cores of a coil core group that lie externally in a cross-sectional plane of the measuring tube, enclose a centre angle β by which 80°≤β≤105°.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
The disclosure relates to a measuring device for characterizing a non-homogeneous, flowable medium, and for determining the density, the mass flow rate and/or the viscosity of the medium measuring tube for guiding the medium natural frequency of which depends on the density of the medium. An exciter for exciting the mode of oscillation and an operation and evaluation circuit designed to apply an excitation signal to the exciter, to capture signals from the oscillation sensor, to determine current values of the natural frequency of the oscillator and fluctuations of the natural frequency on the basis of the signals from the oscillation sensor.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01N 11/16 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement en déplaçant un corps à l'intérieur du matériau en mesurant l'effet d'amortissement sur un corps oscillant
G01N 9/00 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité
87.
MEASUREMENT TUBE OF A CORIOLIS SENSING ELEMENT, CORIOLIS SENSING ELEMENT, AND CORIOLIS METER
A measurement tube of a Coriolis sensing element for measuring a density and a mass flow rate of a medium flowing through a measurement tube includes a measurement tube wall and a measurement tube lumen, characterized in that the measurement tube wall has a sintered ceramic material or is produced from a sintered ceramic material.
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
G01N 9/00 - Recherche du poids spécifique ou de la densité des matériaux; Analyse des matériaux en déterminant le poids spécifique ou la densité
A magnetic-inductive flowmeter includes: a housing having first and second housing parts connected via a guide element, which is configured to enable a distance between the first and second housing parts to be linearly adjustable; an exchangeable measurement tube for guiding a flowable medium; two measurement electrodes mounted in the measurement tube; a magnetic field-generating device for generating a magnetic field permeating the measurement tube; and at least two connection contacts, each electrically connected to a measurement circuit, wherein the measurement tube is reversibly interlockingly and/or frictionally arranged between the first housing part and the second housing part of the housing.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
89.
MAGNETIC-INDUCTIVE FLOW METER AND METHOD FOR OPERATING A MAGNETIC-INDUCTIVE FLOW METER
A magnetic-inductive flow meter includes: a measuring tube for conducting a flowable medium, the measuring tube having a wall; at least three measuring electrodes arranged in the wall to form a galvanic contact with the flowing medium; a magnetic field-generating device for generating a magnetic field that passes through the medium; a measuring circuit designed to ascertain at least one first measurement variable, wherein measured values of the first measurement variable are ascertained at a first measuring electrode pair; and an analysis circuit designed to ascertain a Reynolds number and/or a kinematic viscosity value of the medium in the measuring tube using measured values for the first measurement variable and a second measurement variable, which differs from the first measurement variable, the measured values of the second measurement variable being ascertained at a second measuring electrode pair.
G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p.ex. la viscosité, la plasticité; Analyse des matériaux en déterminant les propriétés d'écoulement
A Coriolis measuring sensor of a Coriolis measuring device includes: at least a pair of measuring tubes; a support body; at least one exciter; and at least two electromagnetic sensors per pair of measuring tubes, wherein the electromagnetic sensors are configured to mask interference magnetic fields and to detect local inhomogeneous magnetic fields generated by magnet devices of the sensor according to a winding direction and/or an interconnection configuration of coils of the magnet devices.
A housing module includes a housing including a housing wall, a first housing chamber and a second housing chamber separated by a partition wall, wherein: the partition wall has a through-opening for an electrical feedthrough for connecting measurement/operating electronics to interface electronics; the feedthrough satisfying requirements of an Ex-d standard; the feedthrough having an electrically insulating carrier body and a plurality of electrically conductive connecting devices for providing the electrical connection, which connecting devices extend through holes in the carrier body; the holes each having a first dimension along a hole axis and each having an inner diameter; the connecting devices each having an outer diameter; the carrier body being inserted into the through-opening from a side of the partition wall facing the first housing chamber, and forming a flame arrestor according to the Ex-d standard.
The disclosure relates to a method for operating a field device used in process automation technology, wherein the field device has an NFC/RFID transponder, wherein an operating unit comprises an operating system which has an executable operating program, in particular application software, wherein the operating unit has an NFC/RFID reader. The method is characterized in that the NFC/RFID transponder comprises a memory which has data which, when read out using the NFC/RFID reader, triggers the calling up of the operating program in the operating unit.
G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
H04W 4/80 - Services utilisant la communication de courte portée, p.ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
Disclosed is an electronic device comprising: a radio module designed to exchange information; an interface device designed to receive a SIM card, the interface device having a data interface, a clock interface, a reset interface and a supply interface designed to supply power to the SIM card; and a circuit board, on which the radio module and the interface device are arranged and electrically connected to one another; characterised in that the radio module has a voltage specification circuit and an associated voltage output, which voltage specification circuit is designed to specify an operating voltage for the SIM card, a fourth electrical connection having a decoupling circuit with power-limited output to the supply interface, which decoupling circuit is designed to decouple the voltage specification and energy supply of the SIM card from one another.
H04B 1/3816 - TRANSMISSION - Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission Émetteurs-récepteurs, c. à d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception avec des connecteurs pour programmer des dispositifs d’identification
94.
VIBRATION-TYPE MEASURING TRANSDUCER AND VIBRONIC MEASURING SYSTEM FORMED THEREWITH
A measuring transducer includes a tube assembly including two pair of structurally identical tubes, each connected at their respective ends to each of two flow dividers, thereby forming four parallel flow paths, and each including alternating, adjoining straight and arcuate segments, wherein each of the first and third arcuate segments has a segment length corresponding to an extended length of a virtual center line of the segment, an arc radius corresponding to a radius of the virtual center line and a center point angle corresponding to a ratio between the segment length and the arc radius, such that each of the first arcuate segments are identical in both shape and size, and such that each of the third arcuate segments are identical in both shape and size, wherein the measuring transducer further includes an exciter assembly and a sensor assembly, each connected to the tube assembly.
A calibration system and methods for flow metering technologies integrates a known primary reference standard (e.g., a gravimetric scale), configured to determine a mass of calibration fluid, in parallel with surrogate secondary masters (e.g., Coriolis effect flowmeters) connected via an adjustable flowpath having a closed loop mode, including a meter bank, a pump and a measuring section, and an open loop mode, including a reservoir, the meter bank, the pump, the measuring section and the primary reference standard, which enables calibration duality and redundant meter under test confirmation of calibration factors. The disclosed systems and methods enable life cycle assurance of the primary reference standard and the secondary masters' standard reliability and reproducibility over time and, as a redundant system, enable calibration of multiple flow metering technologies, such as, for example, volumetric, mass, density, viscosity and Reynolds number-reliant technologies, in one homogenous system.
G01F 25/10 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume des débitmètres
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
96.
METHOD FOR PRODUCING A PROBE OF A THERMAL FLOWMETER, PROBE OF A THERMAL FLOWMETER, AND THERMAL FLOWMETER
A method for producing a probe of a thermal flowmeter for measuring mass flow of a medium in a measuring tube, wherein a probe core is provided arranged loosely in a probe sleeve having a longitudinal axis, wherein the probe sleeve is deformed relative to the longitudinal axis completely radially in the direction of the probe core by means of high energy rate forming, wherein a material-locking connection between probe sleeve and probe core results and a rod is formed, wherein the rod represents a base body that is used for probe production, wherein a deformation speed reaches values greater than 100 m/s, and wherein the high energy rate forming includes explosive forming or magnetic forming.
A method for testing a device under test, the device under test being a measuring instrument to measure a physical parameter of a fluid, includes: performing a plurality of valid test runs, wherein a valid test run includes: exposing the device under test and a reference measuring instrument to the fluid under a set of influences, the set of influences being defined by influence parameters; monitoring the influence parameters; obtaining a reference value for the physical parameter from the reference measuring instrument; and obtaining a test value for the physical parameter from the device under test, wherein a test run is invalidated if influence parameters do not meet specified test requirements for the influence parameters; and then evaluating a plurality of test values originating from the plurality of valid test runs with respect to at least one of accuracy, repeatability and reproducibility.
Disclosed is a measuring sensor of a measuring device for detecting a mass flow rate. The measuring sensor comprises a measuring tube, a vibration exciter, and at least two vibration sensors. The vibration exciter and the vibration sensors each have a coil apparatus having at least one coil and at least one magnetic apparatus. The coil apparatus comprises a printed circuit board having at least one printed circuit board layer, wherein the coil is formed by means of an electrically conductive conductor track, wherein the coil is arranged on the first side and/or second side of a printed circuit board layer, wherein the printed circuit board comprises at least two contact-making elements for connecting the coil to an electronic measuring and/or operating circuit of the measuring device by means of connection elements, and is characterized in that at least one contact-making element has a hole.
Disclosed is a method for determining a flowed amount of a medium using a first flow measuring transducer according to a first measuring principle and a second flow measuring transducer according to a second measuring principle. The measured values of the first transducer are more reliable in first states of the medium than measured values of the second transducer, and the second measured values are more reliable in second states than the first measured values. A contribution to the flowed amount is ascertained based on the more reliable measured values. The contribution to the flowed amount based on the second measured values is ascertained by means of a transfer function. An updated version of the transfer function is ascertained when the first measured values are more reliable, and the flowed amount earlier ascertained based on the second measured values is corrected as a function of the updated transfer function.
G01F 7/00 - Dispositifs de mesure du débit volumétrique avec plusieurs gammes de mesure; Compteurs composés
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
G01F 1/84 - Débitmètres massiques du type Coriolis ou gyroscopique
A Coriolis mass flow meter comprises a transformer circuit configured to receive and analyze vibration measurement signals to determine mass flow measurement values which represent a mass flow of a fluid and to determine characteristic number values for at least one sensor characteristic number, which characterizes and/or is based on at least one harmonic component of at least one of the vibration measurement signals, wherein each vibration measurement signal includes a useful component, having a frequency corresponding to a drive frequency with an amplitude based on a respective magnetic flux through a respective vibration sensor of the flow meter, and a harmonic component having a frequency corresponding to a whole-number multiple of the drive frequency and an amplitude based on the respective magnetic flux.
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