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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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Patent Agency Ranking
公开(公告)号：US12104940B2
公开(公告)日：2024-10-01
申请号：US17414378
申请日：2019-12-17
Applicant: Endress+Hauser Flowtec AG
Inventor： Alfred Rieder , Vivek Kumar , Josef Hubensteiner , Mattia Alioli
CPC classification number: G01F1/8477 , G01F1/8422 , G01F1/8427 , G01F1/8431 , G01F15/022 , G01N9/002 , G01N2009/006
Abstract: A vibronic measurement sensor includes two measuring tubes for conveying the medium and two temperature sensors, each arranged on a surface portion of the measuring tubes, respectively, wherein: centroids of the two surface portions relative to an intersection line between a longitudinal plane of symmetry and the transverse plane of symmetry of the sensor are rotationally symmetrical to one another; the first centroid lies in a first section plane running perpendicular to a measuring tube center line of the first measuring tube, wherein an intersection point of the measuring tube center line with the first intersection plane is defined; and the first centroid is arranged relative to the intersection point of the measuring tube center line such that a measurement accuracy of the sensor is largely independent of the installation position, even when inhomogeneous temperature distributions are formed over measuring tube cross-sections at low Reynolds numbers.
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公开(公告)号：US12044559B2
公开(公告)日：2024-07-23
申请号：US17758082
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Josef Hubensteiner
CPC classification number: G01F1/34 , G01F1/8477
Abstract: 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.
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公开(公告)号：US20230032534A1
公开(公告)日：2023-02-02
申请号：US17758082
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Josef Hubensteiner
Abstract: 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.
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公开(公告)号：US20220065676A1
公开(公告)日：2022-03-03
申请号：US17414378
申请日：2019-12-17
Applicant: Endress+Hauser Flowtec AG
Inventor： Alfred Rieder , Vivek Kumar , Josef Hubensteiner , Mattia Alioli
Abstract: A vibronic measurement sensor includes two measuring tubes for conveying the medium and two temperature sensors, each arranged on a surface portion of the measuring tubes, respectively, wherein: centroids of the two surface portions relative to an intersection line between a longitudinal plane of symmetry and the transverse plane of symmetry of the sensor are rotationally symmetrical to one another; the first centroid lies in a first section plane running perpendicular to a measuring tube center line of the first measuring tube, wherein an intersection point of the measuring tube center line with the first intersection plane is defined; and the first centroid is arranged relative to the intersection point of the measuring tube center line such that a measurement accuracy of the sensor is largely independent of the installation position, even when inhomogeneous temperature distributions are formed over measuring tube cross-sections at low Reynolds numbers.
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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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