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公开(公告)号：US10371553B2
公开(公告)日：2019-08-06
申请号：US15125315
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Hao Zhu , Ennio Bitto , Gerhard Eckert , Josef Hubensteiner , Michael Wiesmann , Yaoing Lin
Abstract: transducer apparatus comprises a transducer housing, a tube, a temperature sensor as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. Furthermore, the tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen. Each of the temperature sensors is formed by means of a temperature detector arranged within the intermediate space as well as by means of a coupling body coupling the respective temperature detector thermally conductively with the wall of the tube and is additionally adapted to register a particular measurement location temperature, and to transduce such into a corresponding temperature measurement signal, namely an electrical measurement signal representing the particular measurement location temperature.
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公开(公告)号：US20220334038A1
公开(公告)日：2022-10-20
申请号：US17616973
申请日：2020-05-04
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Michael Wiesmann
Abstract: 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.
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公开(公告)号：US10234338B2
公开(公告)日：2019-03-19
申请号：US15125252
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Hao Zhu , Michael Wiesmann
Abstract: A transducer apparatus comprises a transducer housing, a tube as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. The tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen. The temperature sensor is formed by means of two temperature detectors arranged within the intermediate space as well as by means of a coupling body coupling the temperature detector thermally conductively with the wall of the tube as well as by means of a coupling body coupling the temperature detector thermally conductively with the temperature detector and is additionally adapted to register a particular measurement location temperature, namely a temperature at a first, respectively second, temperature measurement location formed by means of the respective temperature detector, and to transduce such into a corresponding temperature measurement signal, namely an electrical measurement signal representing the particular measurement location temperature.
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Patent Agency Ranking
公开(公告)号：US11933807B2
公开(公告)日：2024-03-19
申请号：US17616973
申请日：2020-05-04
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Michael Wiesmann
CPC classification number: G01N9/32 , G01F1/8422 , G01F1/8427 , G01F1/8431 , G01F1/8477 , G01N11/04
Abstract: 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.
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公开(公告)号：US20210396565A1
公开(公告)日：2021-12-23
申请号：US17357215
申请日：2021-06-24
Applicant: Endress+Hauser Flowtec AG
Inventor： Wolfgang Drahm , Hao Zhu , Alfred Rieder , Michael Wiesmann , Patrick Oudoire
Abstract: A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.
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公开(公告)号：US20170074730A1
公开(公告)日：2017-03-16
申请号：US15125252
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Hao Zhu , Michael Wiesmann
Abstract: A transducer apparatus comprises a transducer housing, a tube as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. The tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen. The temperature sensor is formed by means of two temperature detectors arranged within the intermediate space as well as by means of a coupling body coupling the temperature detector thermally conductively with the wall of the tube as well as by means of a coupling body coupling the temperature detector thermally conductively with the temperature detector and is additionally adapted to register a particular measurement location temperature, namely a temperature at a first, respectively second, temperature measurement location formed by means of the respective temperature detector, and to transduce such into a corresponding temperature measurement signal, namely an electrical measurement signal representing the particular measurement location temperature.
Abstract translation: 换能器装置包括换能器壳体，管以及温度传感器。 该管被布置在换能器壳体的空腔内，使得在面向空腔内表面的换能器壳体的壁与面向空腔的管壁的外表面之间形成中间空间。 管适于在其内腔中引导流体，使得管的壁的内表面面向内腔与在内腔中引导的流体接触。 温度传感器通过布置在中间空间内的两个温度检测器形成，并且借助耦合体将温度检测器与管的壁热传导耦合，并且借助耦合体耦合温度检测器 与温度检测器导热，并且还适于记录特定的测量位置温度，即，通过相应的温度检测器形成的第一个分别为第二温度测量位置的温度，并将其转换成相应的温度测量信号 即表示特定测量位置温度的电测量信号。
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公开(公告)号：US20170074701A1
公开(公告)日：2017-03-16
申请号：US15125315
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Hao Zhu , Ennio Bitto , Gerhard Eckert , Josef Hubensteiner , Michael Wiesmann , Yaoing Lin
CPC classification number: G01F1/8413 , G01F1/849 , G01F15/02 , G01F15/14 , G01N9/002 , G01N11/16 , G01N2009/006 , G01N2011/0013
Abstract: transducer apparatus comprises a transducer housing, a tube, a temperature sensor as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. Furthermore, the tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen. Each of the temperature sensors is formed by means of a temperature detector arranged within the intermediate space as well as by means of a coupling body coupling the respective temperature detector thermally conductively with the wall of the tube and is additionally adapted to register a particular measurement location temperature, and to transduce such into a corresponding temperature measurement signal, namely an electrical measurement signal representing the particular measurement location temperature.
Abstract translation: 换能器装置包括换能器壳体，管，温度传感器以及温度传感器。 该管被布置在换能器壳体的空腔内，使得在面向空腔内表面的换能器壳体的壁与面向空腔的管壁的外表面之间形成中间空间。 此外，管适于在其内腔中引导流体，使得面向腔的管壁的内表面与在内腔中引导的流体接触。 每个温度传感器通过布置在中间空间内的温度检测器以及通过将相应的温度检测器与管的壁热传导耦合的耦合体来形成，并且另外适用于将特定的测量位置 温度，并将其转换成相应的温度测量信号，即表示特定测量位置温度的电测量信号。
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公开(公告)号：US11073416B2
公开(公告)日：2021-07-27
申请号：US15794279
申请日：2017-10-26
Applicant: ENDRESS + HAUSER FLOWTEC AG
Inventor： Wolfgang Drahm , Hao Zhu , Alfred Rieder , Michael Wiesmann , Patrick Oudoire
Abstract: A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.
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