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公开(公告)号：US20250067586A1
公开(公告)日：2025-02-27
申请号：US18720940
申请日：2022-12-02
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Alfred Rieder , Wolfgang Drahm , Yaoying Lin
Abstract: The method determines a characteristic passage time of a component of a flowing medium in a vibrating measuring tube of a Coriolis mass flow meter. The flow meter has the measuring tube, an exciter for exciting a bending vibration mode of the measuring tube, and a vibration sensor for sensing the measuring tube vibrations. The component is present inhomogenously in the medium and has a component density which deviates from an average density of the medium. The method includes feeding an excitation signal to the exciter with a natural frequency a bending vibration mode, ascertaining at least one first time profile of a signal amplitude of the first vibration sensor at a natural frequency of an anti-symmetrical bending vibration mode, and ascertaining the characteristic passage time on the basis of the first time profile of the signal amplitude at the natural frequency of the anti-symmetrical bending vibration mode.
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公开(公告)号：US20250035526A1
公开(公告)日：2025-01-30
申请号：US18716654
申请日：2022-11-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Andreas Güttler , Helmut Zeislmeier , Ralf Schweigler
IPC: G01N9/00
Abstract: The invention relates to a device for determining a property of a liquid component of a gas-loaded medium comprising a pipeline for conducting the medium with a first section, wherein the first section has an inclination of less than 20° and a second section in the form of a riser, wherein the second section forms an angle of at least 45° with respect to a horizontal, characterized in that a closed end is arranged in an extension of the first section. A connection of the second section to the first section defines a beginning of the closed end, and at least one measuring device for measuring the property of the liquid component is arranged in an end region of the closed end.
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公开(公告)号：US20250035472A1
公开(公告)日：2025-01-30
申请号：US18715566
申请日：2022-11-28
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Tulio Paiva Galvao , Werner Wohlgemuth , Pierre-Jean Ober
Abstract: A method for operating a magnetic-inductive flowmeter includes: applying a first voltage signal to a device for generating a magnetic field, the first voltage signal being divided into time intervals, each having a first time sub-interval, in which a first voltage is applied to the device, wherein the first voltage is controlled such that a deviation of the coil current from a predetermined coil current target value during a measurement interval is minimized, wherein the coil current target value is constant for the entire first voltage signal; and applying a second voltage signal to the device, the second voltage signal being divided into time intervals, each having a second time sub-interval, in which a second voltage is applied to the device, wherein the second voltage is controlled such that a deviation of a control function from a control target value is minimized.
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公开(公告)号：US20250027798A1
公开(公告)日：2025-01-23
申请号：US18715496
申请日：2022-11-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Tulio Paiva Galvao , Simon Triebenbacher , Daniel Kuttler
Abstract: A magnetic-inductive flow meter for determining a flow velocity-dependent measurement variable of a flowable medium includes: a device for generating a magnetic field and a device for tapping a measurement voltage induced in the flowable medium; an operating circuit configured such that, by an electrical operating signal having a variable coil voltage and a variable coil current, electrical power is feed into the magnetic field device, wherein the operating signal has a temporally variable coil voltage curve, which is divided into time intervals, each having a first time subinterval in which a first coil voltage is applied to the magnetic field device; a control circuit configured to control at least the first coil voltage such that a deviation of a control function from a predefined control target value is minimal; and a diagnostic circuit for monitoring at least one diagnostic value.
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公开(公告)号：US20250012693A1
公开(公告)日：2025-01-09
申请号：US18579435
申请日：2022-07-04
Applicant: Endress+Hauser Flowtec AG
Inventor： Benjamin Schwenter , Marc Werner , Markus Schütz
IPC: G01N9/32
Abstract: A connection unit for at least one vibration-tube module of a modular measuring device for determining the density of a measurement medium includes: a measurement-medium inlet, which extends along a first axis; a measurement-medium outlet, which extends along a second axis; at least a first vibration-tube inlet, which is fluidically connected to the measurement-medium inlet; and at least a first vibration-tube outlet, which is fluidically connected to the measurement-medium outlet, wherein the measurement-medium inlet and the measurement-medium outlet are opposite each other such that they are separated with respect to a first plane and are mechanically connected to each other by at least one support unit, and wherein the first axis and the second axis each form an angle of greater than 45° to the first plane.
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Patent Agency Ranking
公开(公告)号：US20240426770A1
公开(公告)日：2024-12-26
申请号：US18698446
申请日：2022-09-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Mohammad Sadegh Ebrahimi , Dietmar Frühauf , Volker Frey , Raphael Kuhnen , Wolfgang Drahm , Stefan Pflüger , Anne Habermehl , Hao Zhu
IPC: G01N22/00
Abstract: A method for distinguishing between the presence of a foreign body and a gas bubble in a flowable medium in a pipeline or a container includes evaluating received microwave signals, wherein mechanical vibrations are introduced into the medium by means of which a gas bubble present in the medium is set into vibration. A gas bubble is detected only in the event that when mechanical vibrations are introduced and the received microwave signals or the value derived therefrom is/are modulated; otherwise, a foreign body is detected. Also disclosed is a system which is suitable for carrying out the method according to the present disclosure.
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公开(公告)号：US20240389252A1
公开(公告)日：2024-11-21
申请号：US18689173
申请日：2022-08-05
Applicant: Endress+Hauser Flowtec AG
Inventor： Philipp Rimkus , Björn Larsson , Daniel Kessler
IPC: H05K5/02
Abstract: An electrical lead-through for an electronics housing, comprises a first stop element with at least one first through-hole, a second stop element with at least one second through-hole, an elastic element which extends between the first stop element and the second stop element along a first axis, and at least one electrical contact element with a first end and a second end lying opposite the first end. The first end of the contact element is movably arranged in the first through-hole and the second end is movably arranged in the second through-hole. The elastic element is suitable for deforming when the first stop element and the second stop element are moved relative to each other, and the first stop element and the second stop element are each suitable for being fixed to the electronics housing.
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公开(公告)号：US20240344870A1
公开(公告)日：2024-10-17
申请号：US18294811
申请日：2022-07-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Johan Pohl , Rémy Scherrer , Hao Zhu
CPC classification number: G01F1/8436 , G01F1/8422 , G01F1/8427 , G01F1/8459 , G01N9/32
Abstract: A method for operating a Coriolis measurement device comprises: recording the measured voltages from the sensors and creating an asymmetric sequence of values using the amplitudes of the measured voltages for the purpose of diagnosing the Coriolis measurement device; checking whether the asymmetric sequence of values satisfies at least one invalidity criterion; and creating a stabilized asymmetric sequence of values on the basis of the asymmetric sequence of values by replacing asymmetric measured values with substitute values. While an invalidity criterion is satisfied a last valid measured value of the asymmetric sequence of values is used as the current value of the stabilized asymmetric sequence of values, or the stabilized asymmetric sequence of values is set to a predetermined value, a first invalidity criterion being based on a scattering parameter of the asymmetric value exceeding a first limit value.
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公开(公告)号：US12111192B2
公开(公告)日：2024-10-08
申请号：US17628602
申请日：2020-06-18
Applicant: Endress+Hauser Flowtec AG
Inventor： Simon Mariager
CPC classification number: G01F1/588 , G01F1/60 , G01N11/00 , G01N2011/0026
Abstract: A magnetic-inductive flow meter includes: a measuring tube for conducting a flowable medium, the measuring tube having a wall; at least three measuring electrodes arranged in the wall to form a galvanic contact with the flowing medium; a magnetic field-generating device for generating a magnetic field that passes through the medium; a measuring circuit designed to ascertain at least one first measurement variable, wherein measured values of the first measurement variable are ascertained at a first measuring electrode pair; and an analysis circuit designed to ascertain a Reynolds number and/or a kinematic viscosity value of the medium in the measuring tube using measured values for the first measurement variable and a second measurement variable, which differs from the first measurement variable, the measured values of the second measurement variable being ascertained at a second measuring electrode pair.
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公开(公告)号：US12104935B2
公开(公告)日：2024-10-01
申请号：US17753375
申请日：2020-08-20
Applicant: Endress+Hauser Flowtec AG
Inventor： Oliver Graf , Raphael Hess , Simon Triebenbacher
Abstract: A magnetic-inductive flow meter includes: a measuring tube for guiding a flowable medium in a longitudinal direction; a measuring electrode arrangement for detecting a measurement voltage dependent on the flow velocity, induced in the medium, two measuring electrode groups opposite one another on the measuring tube; and a magnetic field generating device for generating a magnetic field which passes through the measuring tube and including at least two coil core groups, each having at least two coil cores, wherein a first and a second part of the measuring tube each include at least one coil core group, wherein two radii, which intersect the coil cores of a coil core group that lie externally in a cross-sectional plane of the measuring tube, enclose a centre angle β by which 80°≤β≤105°.
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