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公开(公告)号：US11047719B2
公开(公告)日：2021-06-29
申请号：US16471627
申请日：2017-11-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Küng , Günther Bähr
Abstract: A magnetic-inductive flow meter and a method for operating such a magnetic-inductive flow meter for measuring the flow velocity or the volumetric flow rate of a medium in a measuring tube include subjecting the medium to magnetic fields of different polarity and field strength such that the changing between magnetic fields causes a voltage pulse in the medium and analyzing the voltage pulse to calculate a correction of an electrode voltage profile of a measuring electrode pair of the flow meter.
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公开(公告)号：US20230213367A1
公开(公告)日：2023-07-06
申请号：US17757469
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Frank Schmalzried , Heinz Rufer , Wolfgang Drahm , Thomas Küng
Abstract: A method for operating a magnetically-inductive flowmeter, wherein the magnetically-inductive flowmeter includes: a measuring tube for guiding a flowable medium; at least two measuring electrodes for detecting a flow velocity-dependent measuring voltage induced in the medium; and a magnetic field-generating device for generating a magnetic field passing through the measuring tube, wherein the magnetic field-generating device includes a coil system with at least one coil, includes determining a deviation σ of a reactance of the coil system or of a variable dependent upon the reactance of the coil system from a desired value. A magnetically inductive flowmeter is also disclosed.
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公开(公告)号：US20230025913A1
公开(公告)日：2023-01-26
申请号：US17757382
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Dominik Voglgsang , André Schaubhut , Christian Knapp , Thomas Küng
Abstract: An electronic unit comprises a microcontroller with a control input, a control output, and a signal input; and an interface circuit with a connection terminal, a control output, a control input, and a signal output. Both the microcontroller and the interface circuit each have a first operating mode and a second operating mode. The microcontroller is designed to cause the interface circuit to operate in its first operating mode. The interface circuit is designed to convert an input signal into a derivation signal representing a derivation of the input signal over time and to generate a control signal from the derivation signal. The microcontroller is designed to cause the interface circuit to operate in its second operating mode and to receive and convert a digital input signal and to output an output signal to the microcontroller.
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公开(公告)号：US20210188465A1
公开(公告)日：2021-06-24
申请号：US16757743
申请日：2018-09-27
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Küng , Fabio Schraner , Domink Voglgsang
Abstract: The present disclosure recites a method for time controlled carrying out of a filling process including steps of beginning a first flow measurement before or during the start of a filling of a first container, starting the filling of the first container at a first point in time, and ending the filling of the first container at a second point in time, wherein the second point in time is predetermined by a set, first time interval. The starting and ending steps are repeated for filling a second container. The method also includes ending the first flow measurement and ascertaining a total flow of the preceding fillings, comparing an actual value ascertained from the total flow a predetermined, desired value, and-adapting the first time interval based on the comparing step. An apparatus according to the present disclosure includes a control setup for time controlled fill amount control and a flowmeter.
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公开(公告)号：US11029182B2
公开(公告)日：2021-06-08
申请号：US16317176
申请日：2017-06-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Küng , Günther Bähr , Frank Voigt
Abstract: The present disclosure relates to a method for measuring flow velocity or volume flow of a medium using a magneto inductive flow measuring device and to an arrangement having a magneto inductive flow measuring device, as well as to a filling plant with an arrangement, wherein the medium has a low conductivity. A high accuracy of measurement is achieved by provision of a first narrowing of a medium-containing pipeline and/or a second narrowing of a medium-containing measuring tube, wherein the pipeline leads the medium to a measuring tube of the flow measuring device.
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Patent Agency Ranking
公开(公告)号：US20190383652A1
公开(公告)日：2019-12-19
申请号：US16471618
申请日：2017-11-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Küng , Günther Bähr
Abstract: The present disclosure relates to a method for operating a magnetic-inductive flow meter for measuring the flow rate or the volumetric flow of a medium in a measuring tube and to such a flow meter, wherein the medium is acted upon by magnetic fields of different polarity and field strength, wherein the alternation between magnetic fields causes a voltage pulse in the medium, wherein a voltage pulse during a phase without a magnetic field is used for calculation of a correction of an electrode voltage characteristic.
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公开(公告)号：US10473497B2
公开(公告)日：2019-11-12
申请号：US15326739
申请日：2015-07-16
Applicant: Endress + Hauser Flowtec AG
Inventor： Frank Voigt , Günther Bähr , Thomas Küng
Abstract: A magneto-inductive flow measuring device for ascertaining flow of a measured medium through a measuring tube having a measuring tube axis, comprising: at least a first coil component having a coil body for accommodating a coil core of a coil. The coil is wound on the coil body and the coil core is arranged in a first passageway of the coil body with a longitudinal axis of the coil core coaxial with the coil. At least two cable strands are arranged between the coil core and the coil body, wherein the cable strands serve for tapping the signal of two or more measuring electrodes arranged on the measuring tube. The cable strands extend within the coil component essentially along a cutting plane, which extends perpendicular to the measuring tube axis.
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公开(公告)号：US12169136B2
公开(公告)日：2024-12-17
申请号：US17756960
申请日：2020-11-20
Applicant: Endress+Hauser Flowtec AG
Inventor： Andre Spahlinger , André Schaubhut , Heinz Rufer , Thomas Küng
IPC: G01F1/58
Abstract: The present disclosure relates to a method for operating a magneto-inductive flowmeter, wherein the magneto-inductive flowmeter has a measuring tube for conducting a flowable medium, at least two measurement electrodes for detecting a flow speed-based measurement voltage induced in the medium, and a magnetic field-generating device for generating a magnetic field which passes through the measuring tube, said magnetic field generating device having a coil. The method has the steps of applying a control voltage to the coil in order to generate a change in the coil current over time, and determining the change in the coil current over time in a change-over region, wherein the coil current is changed in the change-over region until a target coil current target is reached.
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公开(公告)号：US12045191B2
公开(公告)日：2024-07-23
申请号：US17757382
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Dominik Voglgsang , André Schaubhut , Christian Knapp , Thomas Küng
CPC classification number: G06F13/4282 , G06F13/4068
Abstract: An electronic unit comprises a microcontroller with a control input, a control output, and a signal input; and an interface circuit with a connection terminal, a control output, a control input, and a signal output. Both the microcontroller and the interface circuit each have a first operating mode and a second operating mode. The microcontroller is designed to cause the interface circuit to operate in its first operating mode. The interface circuit is designed to convert an input signal into a derivation signal representing a derivation of the input signal over time and to generate a control signal from the derivation signal. The microcontroller is designed to cause the interface circuit to operate in its second operating mode and to receive and convert a digital input signal and to output an output signal to the microcontroller.
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公开(公告)号：US20230015365A1
公开(公告)日：2023-01-19
申请号：US17756960
申请日：2020-11-20
Applicant: Endress+Hauser Flowtec AG
Inventor： Andre Spahlinger , André Schaubhut , Heinz Rufer , Thomas Küng
IPC: G01F1/58
Abstract: The present disclosure relates to a method for operating a magneto-inductive flowmeter, wherein the magneto-inductive flowmeter has a measuring tube for conducting a flowable medium, at least two measurement electrodes for detecting a flow speed-based measurement voltage induced in the medium, and a magnetic field-generating device for generating a magnetic field which passes through the measuring tube, said magnetic field generating device having a coil. The method has the steps of applying a control voltage to the coil in order to generate a change in the coil current over time, and determining the change in the coil current over time in a change-over region, wherein the coil current is changed in the change-over region until a target coil current target is reached.
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