公开(公告)号：US20230204396A1

公开(公告)日：2023-06-29

申请号：US18000039

申请日：2021-04-23

Applicant: Endress+Hauser Flowtec AG

Inventor： Florent Tschambser ,  Thomas Sulzer ,  Andre Spahlinger ,  Thomas Bier

IPC: G01F1/60 ,  G01F1/58

CPC classification number: G01F1/60 ,  G01F1/586

Abstract: A magneto-inductive flow measurement device, comprises a means for producing a magnetic field with a self-inductance, wherein the means for producing the magnetic field comprises a coil arrangement; a means for sensing a measurement voltage induced in the flowable medium; an operating circuit, which is adapted to apply an operating signal on the coil arrangement, wherein the operating signal has operating signal parameters; a measuring circuit, which is adapted to determine a coil electrical current of the coil arrangement; a control circuit, which is adapted so to control at least one of the operating signal parameters that a function dependent on a self-induction value of the self-induction and a coil electrical current value of the coil electrical current does not differ from a predetermined, first desired value.

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

IPC: G01F1/58 ,  G01F15/14

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.

公开(公告)号：US10429220B2

公开(公告)日：2019-10-01

申请号：US15537897

申请日：2015-12-03

Applicant: Endress + Hauser Flowtec AG

Inventor： Stefan Rupp ,  Thomas Sulzer ,  Wolfgang Brobeil ,  Oliver Popp

IPC: G01F1/58

Abstract: A magneto-inductive flow measuring device comprising a measuring tube on which a magnet system and two or more measuring electrodes are arranged and/or secured. The measuring tube has in- and outlet regions with a first cross section and the measuring tube has between the in- and outlet regions a middle segment, which has a second cross section. The measuring electrodes are arranged in the middle segment of the measuring tube and the middle segment at least in the region of the measuring electrodes is surrounded by a tube holder, which guards against cross-sectional deformation of the second cross section.

公开(公告)号：US10247593B2

公开(公告)日：2019-04-02

申请号：US15301511

申请日：2015-03-24

Applicant: Endress + Hauser Flowtec AG

Inventor： Thomas Sulzer

IPC: G01F15/14 ,  G01F1/58

Abstract: Apparatus for measuring the flow of a fluid through a measuring tube using the magneto inductive measuring principle, comprising a magnet system for producing a constant magnetic field perpendicular to the flow direction of the fluid, at least two measuring electrodes coupling with the fluid and secured on a measuring tube subsection for sensing an induced voltage, at least one electronics unit for signal registration, evaluation and/or power supply, and a housing, wherein the housing bounds and protects against the environment the measuring tube subsection and at least one other component secured outwardly thereto on the side facing away from the fluid, wherein the housing is manufactured at least partially of a thermoplastic material, which encases with accurate fit the measuring tube subsection and the at least one other component secured thereto.

公开(公告)号：US09658088B2

公开(公告)日：2017-05-23

申请号：US14389858

申请日：2013-03-19

Applicant: Endress + Hauser Flowtec AG

Inventor： Thomas Sulzer ,  Patrick Oudoire

IPC: G01F1/58 ,  G01F15/00

CPC classification number: G01F1/588 ,  G01F1/586 ,  G01F15/006

Abstract: A flow measuring device having a line section serving for guiding a flowable medium, wherein the line section is formed at least partially by a cavity in a circuit board.