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公开(公告)号：US12018966B2
公开(公告)日：2024-06-25
申请号：US17416067
申请日：2019-11-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Reinhard Huber , Gerhard Eckert , Marco Oliver Scherrer
CPC classification number: G01F1/8431 , G01F1/8436 , G01F1/8477 , G01F15/024 , G01F15/10 , G01F15/14
Abstract: The flow measuring system comprises a measuring transducer having a tube arrangement to convey a flowing fluid, an exciter arrangement for forced mechanical oscillations of the tube arrangement, and a sensor arrangement for registering mechanical oscillations of the tube arrangement. The measuring system further comprises a measuring and operating electronics electrically coupled with the exciter arrangement and the sensor arrangement. The measuring system has two driver circuits and two measurement transmitter circuits. The tube arrangement includes two flow dividers and four connected tubes adapted to be flowed through by the measured substance. The exciter arrangement includes two oscillation exciters, and the sensor arrangement includes four oscillation sensors. The first measurement transmitter circuit processes measurement signals from two oscillation sensors and outputs such to the second measurement transmitter circuit The second measurement transmitter circuit processes oscillation measurement signals of the other two oscillation sensors and ascertains total flow measured values.
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12.发明公开公开(公告)号：US20240003798A1
公开(公告)日：2024-01-04
申请号：US18255265
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Gerhard Eckert
CPC classification number: G01N9/32 , G01F1/8477 , G01F1/8422
Abstract: 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.
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公开(公告)号：US20190383658A1
公开(公告)日：2019-12-19
申请号：US16471648
申请日：2017-11-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Alfred Rieder , Ennio Bitto , Gerhard Eckert
Abstract: The present disclosure relates to a vibration-type sensor for measuring the density and/or the mass flow rate of a medium, having at least one first oscillator, the sensor including: a curved first measuring tube; a curved second measuring tube; at least one first elastic vibration coupler that couples the first measuring tube and the second measuring tube to each; and at least one exciter for exciting oscillator vibrations in a bending vibration mode. The oscillator has a first oscillator resonant frequency for when the measuring tubes vibrate approximately in phase in the bending vibration mode and a greater second oscillator resonant frequency for when the measuring tubes vibrate approximately in counterphase in the bending vibration mode. The first and second measuring tubes have resonant frequencies differing from their arithmetic mean by no more than 8%, no more than 4%, no more than 2% or no more than 1%.
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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：US20180231411A1
公开(公告)日：2018-08-16
申请号：US15749888
申请日：2016-07-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Alfred Rieder , Gerhard Eckert
Abstract: The invention relates to a method for ascertaining a physical parameter of a gas using a measuring transducer having a measuring tube for conveying the gas, wherein the measuring tube is excitable to execute bending oscillations of different modes and eigenfrequencies, the method includes: ascertaining the eigenfrequency of the f1-mode and f3-mode; ascertaining preliminary density values for the gas based on the eigenfrequencies of the f1-mode and f3-mode; ascertaining a value for the velocity of sound of the gas, and/or, dependent on the velocity of sound and the eigenfrequency of a mode, at least one correcting term and/or density error for the preliminary density value; and/or a correcting term for a preliminary mass flow value for determining a corrected mass flow measured value based on the first preliminary density value, the second preliminary density value, the eigenfrequencies of the f1-mode and f3-mode.
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Patent Agency Ranking
公开(公告)号：US20170343404A1
公开(公告)日：2017-11-30
申请号：US15535515
申请日：2015-11-09
Applicant: Endress + Hauser Flowtec AG
Inventor： Martin Josef Anklin , Gerhard Eckert , Christian Schutze , Ennio Bitto , Christof Huber , Claude Hollinger , Alfred Rieder , Michael Kirst
CPC classification number: G01F1/8468 , G01F1/8404 , G01F1/8409 , G01N9/002 , G01N11/167 , G01N2009/006 , G01N2291/02818
Abstract: 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：US20160313162A1
公开(公告)日：2016-10-27
申请号：US15104001
申请日：2014-11-17
Applicant: ENDRESS+HAUSER FLOWTEC AG
Inventor： Ennio Bitto , Gerhard Eckert
CPC classification number: G01F1/8422 , G01F1/8409 , G01N9/002 , G01N11/16 , H01F5/02 , H01F5/04 , H01F27/06
Abstract: The coil (1) comprises a platform (11) having a passageway (11A; 11A) extending from an end (11+) of the platform formed by a first end face to an end (11#) of the platform distal to the end (11+) and formed by a second end face, and a coil support (12) having a passageway (12A) extending from an end (12+) of the coil support formed by a first end face to an end (12#) of the coil support distal to the first end and formed by a second end face. The coil support (12) is so arranged relative to the platform (11) that the second end face of the coil support faces the platform and an intermediate space (20) is formed between the second end face of the coil support and the first end face of the platform, and that the passageway (12A) of the coil support aligns with the passageway (11A) of the platform. The coil (1) additionally comprises a screw (13) accommodated both by the passageway of the coil support as well as also by the passageway of the platform for the mechanical connecting of coil support and platform, a coil wire (14) of an electrically conductive material wound around the coil support, as well as at least two connecting lines (111, 112), in each case, placed partially in the intermediate space formed between coil support and platform, of which connecting lines a connecting line (111) has at least one conductor (111A) of electrically conductive material electrically conductively connected with an end (14+) of the coil wire and a connecting line (112) has at least one conductor (112A) of electrically conductive material electrically conductively connected with an end (14#) of the coil wire. The coil is provided especially also for application in a measuring transducer of vibration-type.
Abstract translation: 线圈（1）包括平台（11），该平台（11）具有从由第一端面形成的平台的端部（11+）延伸到远离端部的平台的端部（11＃）的通道（11A; 11A） （11+）并且由第二端面形成，线圈支撑件（12）具有从由第一端面形成的线圈支架的端部（12 +）延伸到端部（12＃）的通道（12A） 的线圈支架远离第一端并由第二端面形成。 线圈支架（12）相对于平台（11）布置成线圈支撑件的第二端面面向平台，并且在线圈支架的第二端面与第一端之间形成中间空间 平台的表面，并且线圈支架的通道（12A）与平台的通道（11A）对准。 线圈（1）还包括由线圈支撑件的通道以及用于线圈支撑件和平台的机械连接的平台的通道所容纳的螺钉（13），电气线圈（14） 缠绕在线圈支撑件上的导电材料以及至少两条连接线（111,112），每个连接线（111,112）部分地放置在线圈支撑件和平台之间形成的中间空间中，连接线（111）具有连接线 导电材料的至少一个导体（111A）与线圈线的端部（14+）导电连接，连接线（112）具有至少一个导电材料的导体（112A），导电材料与端部 （14＃）的线圈线。 该线圈特别适用于振动型测量传感器。
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公开(公告)号：US20240318998A1
公开(公告)日：2024-09-26
申请号：US18575383
申请日：2022-06-28
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Gerhard Eckert
CPC classification number: G01F25/10 , G01F1/8422 , G01F1/8477
Abstract: A method for operating a Coriolis measurement device is provided. The Coriolis measurement device comprises at least one measuring tube for conducting a medium, at least one exciter for exciting measuring tube oscillations, at least one first sensor and at least one second sensor for detecting measuring tube oscillations, an electronic measuring/operating circuit for operating the exciter and for detecting and evaluating measuring signals of the sensors. The method comprises the following steps: checking, in a first method step, whether one of the following variables of the medium: flow velocity or mass flow, exceeds a first threshold value and/or whether a variation of a measuring signal from an average value exceeds a second threshold value, and in a second method step, if the first threshold value and/or the second threshold value is exceeded, increasing an oscillation amplitude of the measuring tube oscillations by a factor E by boosting exciter performance.
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公开(公告)号：US20210123845A1
公开(公告)日：2021-04-29
申请号：US16956573
申请日：2018-11-15
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Alfred Rieder , Bitto Ennio , Gerhard Eckert
Abstract: A measuring transducer includes a tube arrangement having a bent tube, an equally embodied tube, a bent tube and a tube embodied equally to the tube, and two flow dividers each having four flow openings. The measuring transducer includes an exciter for exciting and maintaining mechanical oscillations of the tube arrangement and a sensor for registering mechanical oscillations of the tube arrangement and for producing oscillation measuring signals. Each tube is connected to each flow divider to form four parallel flow paths, having a straight segment connected with the flow divider, an arc shaped segment following such straight segment, a straight segment following such arc shaped segment, an arc shaped segment following such straight segment, a straight segment following such arc shaped segment, an arc shaped segment following such straight segment, and a straight segment following such arc shaped segment and is connected with the flow divider.
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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
Applicant: Endress + Hauser Flowtec AG
Inventor： Martin Josef Anklin , Gerhard Eckert , Christian Schutze , Ennio Bitto , Christof Huber , Claude Hollinger , Alfred Rieder , Michael Kirst
Abstract: 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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