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11.发明授权公开(公告)号：US11530967B2
公开(公告)日：2022-12-20
申请号：US16754107
申请日：2018-09-27
Applicant: Endress+Hauser Flowtec AG
Inventor： Ennio Bitto , Alfred Rieder , Yaoying Lin , Martin Josef Anklin
Abstract: The present disclosure relates to a transducer comprising a tube, a converter unit, an electromechanical exciter arrangement for stimulating and sustaining forced mechanical vibrations of the converter unit, and a sensor arrangement for detecting mechanical vibrations of the converter unit and for generating a vibration signal representing mechanical vibrations of the converter unit. The converter unit includes two connection elements connected to a displacer element and is inserted into the tube and connected thereto. The converter unit is configured as to be contacted by a fluid flowing through the tube and enabled to vibrate such that the connection elements and the displacer elements are proportionately elastically deformed. The transducer can be a constituent of a measuring system adapted to measure and/or monitor a flow parameter of the flowing fluid and further includes an electronic measuring and operating system coupled to the exciter arrangement and the sensor arrangement of the transducer.
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公开(公告)号：US20220236160A1
公开(公告)日：2022-07-28
申请号：US17612540
申请日：2020-04-15
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Gerhard Eckert , Ennio Bitto , Alfred Rieder , Marc Werner
Abstract: 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.
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公开(公告)号：US20220057245A1
公开(公告)日：2022-02-24
申请号：US17416133
申请日：2019-11-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Robert Lalla , Alfred Rieder , Ennio Bitto , Marcel Braun
IPC: G01F1/84
Abstract: The Coriolis mass flowmeter comprises a measuring transducer having a vibration element, an exciter arrangement, and a sensor arrangement The flowmeter further includes an electronic transmitter circuit coupled with the exciter arrangement and the sensor arrangement. The transmitter circuit supplies power to the exciter arrangement to force mechanical oscillations having a wanted frequency. The sensor arrangement includes two electrodynamic oscillation sensors to convert oscillatory movements of the vibration element into an electrical signal having an alternating voltage having an amplitude dependent on the wanted frequency and on a magnetic flux of its oscillation sensor. The sensor arrangement includes a magnetic field detector adapted to convert changes of the magnetic field into a magnetic field signal having an amplitude dependent on a magnetic flux and/or an areal density of the magnetic flux. The transmitter circuit ascertains mass flow measured values and ascertains whether an external magnetic field is present.
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公开(公告)号：US10942058B2
公开(公告)日：2021-03-09
申请号：US16315826
申请日：2017-06-26
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Gerhard Eckert , Ennio Bitto , Hao Zhu
Abstract: The measuring system comprises a transducer apparatus with two tubes, each having a lumen surrounded by a wall. A fluid flows through each tube, while the tube is vibrated. An electromechanical-exciter mechanism maintains mechanical oscillations of each of the tubes, and a sensor arrangement registers mechanical oscillations of at least one of the tubes. The transducer apparatus includes two temperature sensors, each being mechanically and thermally conductively coupled with a wall of a respective one of the tubes and adapted to register a measuring point temperature and to convert such into a temperature measurement signal. A measuring- and operating electronics is adapted, with application of the temperature measurement signals, to generate a transducer temperature measured value, which represents a transducer apparatus temperature, which deviates both from each of the measuring point temperatures, such that a magnitude of the transducer temperature measured value is between the measuring point temperatures.
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15.发明申请公开(公告)号：US20200333229A1
公开(公告)日：2020-10-22
申请号：US16754107
申请日：2018-09-27
Applicant: Endress+Hauser Flowtec AG
Inventor： Ennio Bitto , Alfred Rieder , Yaoying Lin , Martin Josef Anklin
Abstract: The present disclosure relates to a transducer comprising a tube, a converter unit, an electromechanical exciter arrangement for stimulating and sustaining forced mechanical vibrations of the converter unit, and a sensor arrangement for detecting mechanical vibrations of the converter unit and for generating a vibration signal representing mechanical vibrations of the converter unit. The converter unit includes two connection elements connected to a displacer element and is inserted into the tube and connected thereto. The converter unit is configured as to be contacted by a fluid flowing through the tube and enabled to vibrate such that the connection elements and the displacer elements are proportionately elastically deformed. The transducer can be a constituent of a measuring system adapted to measure and/or monitor a flow parameter of the flowing fluid and further includes an electronic measuring and operating system coupled to the exciter arrangement and the sensor arrangement of the transducer.
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Patent Agency Ranking
公开(公告)号：US10768034B2
公开(公告)日：2020-09-08
申请号：US16471656
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 measurement sensor of the vibrational type for measuring the density and/or the mass flow of a medium, including: two oscillators; an exciter for stimulating oscillator vibrations; and two vibration sensors, wherein the first oscillator includes first and second measuring tubes and a first resilient vibration coupler for coupling the measuring tubes, wherein the second oscillator includes third and fourth measuring tubes and a second resilient vibration coupler for coupling the third and fourth measuring tubes, wherein perpendicularly to a measuring tube transverse plane a measurement sensor longitudinal plane extends between the third and the fourth measuring tube, wherein the first and third measuring tube relative to a measurement sensor longitudinal plane are in mirror symmetry relative to one another, and wherein the second and fourth measuring tube relative to the measurement sensor longitudinal plane are in mirror symmetry relative to one another.
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公开(公告)号：US20190162702A1
公开(公告)日：2019-05-30
申请号：US16302769
申请日：2017-04-27
Applicant: Endress+Hauser Flowtec AG
Inventor： Alfred Rieder , Gerhard Eckert , Ennio Bitto , Hao Zhu
Abstract: A measuring transducer includes a support body, a curved oscillatable measuring tube, an electrodynamic exciter, at least one sensor for registering oscillations of the measuring tube, and an operating circuit. The measuring tube has first and second bending oscillation modes, which are mirror symmetric to a measuring tube transverse plane and have first and second media density dependent eigenfrequencies f1, f3 with f3>f1. The measuring tube has a peak secant with an oscillation node in the second mirror symmetric bending oscillation mode. The operating circuit is adapted to drive the exciter conductor loop with a signal exciting the second mirror symmetric bending oscillation mode. The exciter conductor loop has an ohmic resistance RΩ and a mode dependent mutual induction reactance Rg3 which depends on the position of the exciter. The exciter is so positioned that a dimensionless power factor pc 3 = 4 · R Ω · R g 3 ( R Ω + R g 3 ) 2 has a value of not less than 0.2.
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公开(公告)号：US20240344868A1
公开(公告)日：2024-10-17
申请号：US18701083
申请日：2022-09-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Ennio Bitto , Hao Zhu , Dirk Butzbach
IPC: G01F1/84
CPC classification number: G01F1/8418 , G01F1/8477
Abstract: A Coriolis mass flow meter includes: a measuring tube for guiding a medium; a support body connected to the measuring tube on the inlet side and on the outlet side; an exciter for exciting bending vibrations of the measuring tube; at least two vibration sensors for detecting vibrations of the measuring tube; and a reinforcing body fastened to a lateral surface of the measuring tube and surrounds the measuring tube, the reinforcing body including, at least in sections, a helical course with a plurality of windings, a distance between two adjacent windings of the reinforcing body being not less than twice, for example, not less than four times or not less than eight times, a material thickness of the reinforcing body in the region of the windings.
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公开(公告)号：US20240044686A1
公开(公告)日：2024-02-08
申请号：US18258921
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Ennio Bitto
IPC: G01F1/84
CPC classification number: G01F1/8436 , G01F1/8422
Abstract: 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.
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公开(公告)号：US20240027251A1
公开(公告)日：2024-01-25
申请号：US18256858
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Ennio Bitto , Benjamin Schwenter , Marc Werner , Johan Pohl
IPC: G01F1/84
CPC classification number: G01F1/8477 , G01F1/8422 , G01F1/8427
Abstract: 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.
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