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1.发明授权公开(公告)号：US11360070B2
公开(公告)日：2022-06-14
申请号：US16499517
申请日：2018-02-15
摘要： The present disclosure relates to a method for determining the methane index of a hydrocarbon-containing combustion gas mixture which has natural gas or biogas, having the steps: flowing the gas mixture through a measuring assembly; determining a first value of a first measurement variable related to a viscosity of the gas mixture; determining a second value of a second measurement variable related to a density of the gas mixture; determining a pressure value of the gas mixture, said pressure value belonging to the first value and the second value; determining a temperature value of the gas mixture, said temperature value belonging to the first value and the second value; and determining the methane index as a function of the first value, the second value, the pressure value, and the temperature value.
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公开(公告)号：US20200166397A1
公开(公告)日：2020-05-28
申请号：US16618730
申请日：2018-05-08
摘要： A mass flow measuring sensor includes: an oscillatable measuring tube bent in a tube plane; an oscillation exciter for exciting bending oscillations in a bending oscillation use-mode; two oscillation sensors for registering oscillations; a support system; and a measuring sensor housing; wherein the support system has support system oscillation modes, including elastic deformations of the support plate; wherein the support plate is cut to form a number of spirally shaped spring securements, via which the support plate is secured to the measuring sensor housing with oscillation degrees of freedom, whose eigenfrequencies are lower than a use-mode eigenfrequency of the bending oscillation use-mode, wherein the use-mode eigenfrequency is lower than the eigenfrequencies of the support system oscillation modes, wherein a calibration factor describes a proportionality between a mass flow through the measuring tube and a phase difference between oscillations of the measuring tube oscillating in the bending oscillation use-mode.
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公开(公告)号：US20200124453A1
公开(公告)日：2020-04-23
申请号：US16618707
申请日：2018-05-08
发明人： Christof Huber , Christian Schütze , Dieter Mundschin , Benjamin Schwenter , Severin Ramseyer , Marc Werner
摘要： A mass flow sensor includes: a vibratory measurement tube bent in a tube plane; a vibration exciter for exciting bending vibrations in a bending vibration use-mode; two vibration sensors for sensing vibrations; a support system having a support plate, bearing bodies on the inlet and sides; and a sensor housing, wherein: the support system has support system vibration modes which include elastic deformations of the support plate; the measurement tube is connected fixedly to the support plate by the bearing body on the inlet side and by the bearing body on the outlet side; and the support plate has a number of spring-loaded bearings exposed through cut-outs in the support plate by which the support plate is mounted on the sensor housing with degrees of vibrational freedom, the natural frequencies of which are lower than a use-mode natural frequency of the bending vibration use-mode.
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公开(公告)号：US20190317037A1
公开(公告)日：2019-10-17
申请号：US16471162
申请日：2017-11-22
摘要： The present disclosure relates to a gas analyzer for measuring density and/or viscosity of a medium. The gas analyzer includes a connection panel having first and second media openings, each of which extends from a first surface to a second surface of the connection panel. A sensor panel is joined together with the connection panel on a first joint plane, and a cover panel is joined together with the sensor panel on a second joint plane, on a sensor panel face facing away from the connection panel. The cover panel has a cover panel cavity which communicates with the first and second media openings, and the sensor panel has at least one oscillator cavity which communicates with the first and second media openings. The sensor panel has a micromechanical oscillator arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes.
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公开(公告)号：US09261393B2
公开(公告)日：2016-02-16
申请号：US14249529
申请日：2014-04-10
发明人： Christof Huber , Vivek Kumar
IPC分类号： G01F1/84
CPC分类号： G01F1/8472 , G01F1/8413 , G01F1/8436 , G01F1/8477
摘要： A Coriolis mass flow measuring device comprises a measuring device electronics as well as, connected thereto, a measuring transducer comprising at least one measuring tube, an oscillation exciter for oscillating the at least one measuring tube and, mutually spaced along the measuring tube, two oscillation sensors for generating oscillation signals representing oscillations of the measuring tube. The measuring tube is adapted to be flowed through by a medium and during that to be caused to vibrate in such a manner that the measuring tube executes wanted oscillations having a wanted frequency. The wanted oscillations are suitable to induce in the flowing medium, dependent on its mass flow rate, Coriolis forces suitable for bringing about a measurement effect of a first type, namely Coriolis oscillations of the wanted frequency superimposed on the wanted oscillations. These Coriolis oscillations are, in turn, suitable to induce in the medium centrifugal forces dependent on its mass flow rate and on its density. These centrifugal forces bring about a measurement effect of a second type, namely, superimposed on the Coriolis oscillations, centrifugal oscillations of the wanted frequency. The measuring device electronics is, among other things, adapted, based on the oscillation signals, to generate at least one mass flow, measured value, representing the mass flow rate, in such a manner that a dependence of a phase difference existing between wanted signal components of the oscillation signals is taken into consideration by the measurement effect of second type.
摘要翻译： 科里奥利质量流量测量装置包括测量装置电子装置，以及与其连接的测量换能器，包括至少一个测量管，用于振荡至少一个测量管的振荡激励器，并且沿测量管相互间隔开两个振荡 用于产生表示测量管的振荡的振荡信号的传感器。 测量管适于通过介质流动，并且在该位置被引起振动，使得测量管执行想要的具有想要的频率的振荡。 所需的振荡适合于在流动介质中诱导，取决于其质量流率，适用于产生第一类型的测量效应的科里奥利力，即所需频率的科里奥利振荡叠加在所需振荡上。 这些科里奥利振荡反过来又适合于依赖于其质量流量和其密度而引起介质离心力。 这些离心力产生第二类型的测量效果，即叠加在科里奥利振荡上，所需频率的离心振荡。 测量装置电子装置尤其适用于基于振荡信号，以这样的方式产生表示质量流量的至少一个质量流量，测量值，使得存在于有用信号之间的相位差的依赖性 通过第二种类型的测量效果来考虑振荡信号的分量。
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公开(公告)号：US11662289B2
公开(公告)日：2023-05-30
申请号：US16632625
申请日：2018-06-20
CPC分类号： G01N11/16 , G01F1/8477 , G01F1/8495
摘要： An apparatus for measuring viscosities of fluids is described, comprising: a measuring system (1) having at least one measuring tube (5), which in measurement operation is filled with a fluid or through which fluid is flowing, and which has at least one tube section (4, 7) excitable to execute oscillations; an exciter system (1) for exciting at least two wanted oscillation modes of different frequencies, at each of which at least one of the tube sections (4, 7) is excited to execute oscillations, especially resonant oscillations; a sensing system (3), which is embodied in such a manner that it determines for the wanted oscillation modes excited in measurement operation, in each case, a frequency and a damping, especially a frequency, an amplitude and a damping, of a resulting oscillation of at least one tube section (4, 7) excited to execute oscillations of one of the wanted oscillation modes, and an evaluation system (15), which is embodied in such a manner that it determines based on calibration data stored in a memory (17) for the individual wanted oscillation modes excited in measurement operation, in each case, based on an excitation determined frequency and damping, especially frequency, amplitude and damping, of the resulting oscillation a measured shear rate value and a viscosity measured value, wherein the viscosity measured value corresponds to the dynamic viscosity of the fluid at a static shear rate corresponding to the shear rate value.
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7.发明授权公开(公告)号：US11474092B2
公开(公告)日：2022-10-18
申请号：US16348139
申请日：2017-10-10
摘要： A method for determining properties of a hydrocarbon-containing gas mixture includes determining a thermal conductivity value, density measurement, viscosity measurement, and temperature and pressure. The method also includes determining a hydrogen content of the gas mixture on the basis of the thermal conductivity value and the temperature and pressure, determining a density measurement and associated temperature and pressure, and determining the mean molar mass or standard density on the basis of the density measurement and the temperature and pressure. The method further includes determining the mean molar mass or standard density of a hydrogen-free residual gas mixture based on the mean molar mass or standard density and the hydrogen fraction, determining the Wobbe index of the residual gas mixture based on the viscosity measurement and the temperature and pressure, and determining a calorific value based on the mean molar mass or standard density and the Wobbe index.
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公开(公告)号：US11125596B2
公开(公告)日：2021-09-21
申请号：US16474719
申请日：2017-11-22
发明人： Ennio Bitto , Christof Huber , Alfred Rieder
摘要： A measuring system includes a measuring and operation electronic unit (ME) and a transducer device electrically coupled thereto. The transducer device (MW) has at least one tube, through which fluid flows during operation and which is caused to vibrate meanwhile, a vibration exciter, two vibration sensors for generating vibration signals, and two temperature sensors for generating temperature measurement signals (θ1, θ2). The temperature sensors are coupled to a wall of the tube in a thermally conductive manner. The ME is designed to feed electrical power into the at least one vibration exciter to cause mechanical vibrations of the tube by an electrical excitation signal. The ME generates a mass flow sequence representing the instantaneous mass flow rate (m) of the fluid, so that, at least for a reference mass flow rate, the mass flow measurement values are independent of the temperature difference.
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公开(公告)号：US10533884B2
公开(公告)日：2020-01-14
申请号：US15535515
申请日：2015-11-09
发明人： Martin Josef Anklin , Gerhard Eckert , Christian Schutze , Ennio Bitto , Christof Huber , Claude Hollinger , Alfred Rieder , Michael Kirst
摘要： A measuring transducer for registering and/or monitoring at least one process variable of a flowable medium guided in a pipeline, which at least includes: a housing module, which is mechanically coupled with the pipeline via an inlet end and an outlet end, and a sensor module having at least one measuring tube held oscillatably at least partially in the housing module and caused, at least at times, to oscillate. The at least one component of the housing module and/or of the sensor module is manufactured by means of a generative method and method for manufacturing at least one component of a measuring transducer, which method includes manufacturing the at least one component by means of a primary forming process, especially by means of a layered applying and/or melting-on of a powder, especially a metal powder, based on a digital data set, which gives at least the shape and/or the material and/or the structure of the at least one component.
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公开(公告)号：US11378431B2
公开(公告)日：2022-07-05
申请号：US16618730
申请日：2018-05-08
摘要： A mass flow measuring sensor includes: an oscillatable measuring tube bent in a tube plane; an oscillation exciter for exciting bending oscillations in a bending oscillation use-mode; two oscillation sensors for registering oscillations; a support system; and a measuring sensor housing; wherein the support system has support system oscillation modes, including elastic deformations of the support plate; wherein the support plate is cut to form a number of spirally shaped spring securements, via which the support plate is secured to the measuring sensor housing with oscillation degrees of freedom, whose eigenfrequencies are lower than a use-mode eigenfrequency of the bending oscillation use-mode, wherein the use-mode eigenfrequency is lower than the eigenfrequencies of the support system oscillation modes, wherein a calibration factor describes a proportionality between a mass flow through the measuring tube and a phase difference between oscillations of the measuring tube oscillating in the bending oscillation use-mode.
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