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11.发明申请公开(公告)号：US20210131843A1
公开(公告)日：2021-05-06
申请号：US17256298
申请日：2019-05-23
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Sulzer , Simon Mariager , Simon Triebenbacher , Michael Fuchs
Abstract: The present disclosure relates to a magnetic-inductive flowmeter, including a measuring tube for conveying a medium, a magnetic field generating means and at least two measuring electrodes for sensing a measurement voltage inductively generated in the medium, including a conductive coating internally selectively applied in the measuring tube for forming a galvanic contacting of the medium.
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12.发明授权公开(公告)号：US11629982B2
公开(公告)日：2023-04-18
申请号：US17045543
申请日：2019-03-07
Applicant: Endress+Hauser Flowtec AG
Inventor： Simon Mariager
Abstract: The present disclosure relates to a magnetic-inductive flowmeter for measuring flow velocity of a medium, comprising a measuring tube; an apparatus positioned toward a cross-section of the measuring tube for producing a magnetic field extending perpendicular to a longitudinal direction, wherein the apparatus includes a segment coupling the magnetic field into the medium, wherein the segment surrounds the measuring tube over a first angle; and an electrode system having at least two electrode pairs adapted to register a voltage induced in the medium, wherein a second angle defines a minimum circular sector in which the electrodes located on one side of the measuring tube are distributed, wherein first and second angles are so matched to one another that the flowmeter is insensitive to departures from a rotationally symmetric flow such that the flowmeter in a test measurement has a measurement error of flow velocity less than 1.0%.
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公开(公告)号：US20220276081A1
公开(公告)日：2022-09-01
申请号：US17628602
申请日：2020-06-18
Applicant: Endress+Hauser Flowtec AG
Inventor： Simon Mariager
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：US20210364331A1
公开(公告)日：2021-11-25
申请号：US17299987
申请日：2019-11-11
Applicant: Endress+Hauser Flowtec AG
Inventor： Simon Mariager
IPC: G01F1/58
Abstract: A magnetic-inductive flowmeter includes: a measuring tube; a magnetic field generator including a pole shoe for producing in the medium a magnetic field extending perpendicular to the longitudinal direction, wherein the pole shoe subtends a field central angle; and at least two measuring electrode components in galvanic contact with the medium, wherein the measuring electrode components have a circular arc length, which subtends an electrode central angle, wherein the field and electrode central angles are so adapted relative to one another that the flowmeter is insensitive to departures from a rotationally symmetric flow to a degree such that the magnetic-inductive flowmeter has in a test measurement a measurement error of flow velocity and/or a measurement error of volume flow of less than 0.2%.
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Patent Agency Ranking
公开(公告)号：US20210164815A1
公开(公告)日：2021-06-03
申请号：US16954028
申请日：2018-11-14
Applicant: Endress+Hauser Flowtec AG
Inventor： Michael Linnert , Simon Mariager
Abstract: The present disclosure relates to a method for operating a magnetoinductive flowmeter in which, during a constant phase having a constant magnetic field, a plurality of raw measured values of the raw measurement voltage are determined, the raw measurement voltage including a flow-dependent component, an interference component and a noise component, wherein each raw measured value assigned a flow measured value and an interference voltage value, wherein a raw measured value from a preceding first constant phase and a raw measured value from a second constant phase following the first constant phase are used to calculate a second flow measured value and a second interference voltage value of the interference component, wherein first flow measured values from the first constant phase and/or second constant phase are corrected using the knowledge of the second flow measured value and the calculated second interference voltage value.
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公开(公告)号：US12247859B2
公开(公告)日：2025-03-11
申请号：US18001945
申请日：2021-06-14
Applicant: Endress+Hauser Flowtec AG
Inventor： Beat Tschudin , Bruno Worreth , Thomas Bier , Steffen Weiss , Simon Mariager
Abstract: A magnetically inductive flow measuring probe comprises a housing that is adapted to be exposed to the medium; two measuring electrodes arranged in a housing end section for forming a galvanic contact with the medium and for sensing a voltage induced in the flowing medium; and a means for producing a magnetic field passing through the housing end section. The means includes a coil arrangement and a field guide body. The field guide body comprises two field guide body legs connected with a coil core, extending to a front section of the housing and adapted to serve as field guideback. Orthogonal projections of the measuring electrodes and the field guide body onto a cross sectional plane are disjoint.
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公开(公告)号：US12085429B2
公开(公告)日：2024-09-10
申请号：US17638504
申请日：2020-08-03
Applicant: ENDRESS+HAUSER FLOWTEC AG
Inventor： Beat Tschudin , Simon Mariager
Abstract: A magnetic-inductive flow meter includes: a housing; a first and a second measurement electrode in galvanic contact with a flowing medium in a pipe; a magnetic field-generating device positioned in the housing and including a measurement circuit configured to determine a first measurement variable, and wherein measurement values of the first measurement variable are measured between two measurement electrodes or at a measurement electrode in relation to a reference potential; and an evaluation circuit configured to determine a Reynolds number and/or a kinematic viscosity value of the medium using measurement values of the first measurement variable and of a second measurement variable, which differs from the first measurement variable, wherein the measurement electrodes are positioned such that, during a test measurement, quotients of current measurement values of the first and of the second measurement variable correspond bijectively with the Reynolds number of the medium in the pipe.
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公开(公告)号：US20240060804A1
公开(公告)日：2024-02-22
申请号：US18257981
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Tobias Brütsch , Simon Mariager , Frank Voigt , Markus Rüfenacht
Abstract: The present disclosure relates to a magnetic-inductive flow meter including a measuring pipe having a measuring pipe body which electrically insulates portions thereof. A device generates a magnetic field that penetrates the measuring pipe body and detects an induced voltage in the medium, which is a function of a velocity of flow. A monitoring device detects damage to the measuring pipe body and comprises at least one electrically conductive conductor. The conductor is separated from the measuring pipe volume by a region of the measuring pipe body when the measuring pipe body is intact. The monitoring device comprises a measuring circuit electrically connected to the conductor and is designed to measure values of a measured variable which is dependent on an impedance of the conductor. The measuring circuit then compares each of the measured values with a reference value or a target value range.
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公开(公告)号：US20230236050A1
公开(公告)日：2023-07-27
申请号：US18001945
申请日：2021-06-14
Applicant: Endress+Hauser Flowtec AG
Inventor： Beat Tschudin , Bruno Worreth , Thomas Bier , Steffen Weiss , Simon Mariager
Abstract: A magnetically inductive flow measuring probe comprises a housing that is adapted to be exposed to the medium; two measuring electrodes arranged in a housing end section for forming a galvanic contact with the medium and for sensing a voltage induced in the flowing medium; and a means for producing a magnetic field passing through the housing end section. The means includes a coil arrangement and a field guide body. The field guide body comprises two field guide body legs connected with a coil core, extending to a front section of the housing and adapted to serve as field guideback. Orthogonal projections of the measuring electrodes and the field guide body onto a cross sectional plane are disjoint.
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