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公开(公告)号：US11747179B2
公开(公告)日：2023-09-05
申请号：US16465224
申请日：2017-10-11
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Sulzer , Florent Tschambser
IPC: G01F1/58 , C08G69/10 , C08G69/14 , C09D5/00 , C09D177/02 , C09D177/04
CPC classification number: G01F1/584 , C08G69/10 , C08G69/14 , C09D5/00 , C09D177/02 , C09D177/04
Abstract: A magnetically inductive flow meter having a measuring tube with a wall, which includes an electrically insulating surface of a first material, and an electrode having an electrode axis, wherein the electrode has at least one electrode end surface for tapping off a measuring signal, in particular a measuring voltage, in a measuring medium, and has an electrode shank extending through the measuring tube wall, wherein the electrode has a stop projecting from the electrode shank with a stop surface to limit the displaceability of the electrode relative to the wall along the electrode axis, wherein the electrode has an electrically insulating coating in a region of the electrode shank and in a region of the stop surface, wherein the material of the electrically insulating coating has a Shore hardness which is equal to or lower than that of the first material.
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公开(公告)号：US10551228B2
公开(公告)日：2020-02-04
申请号：US15510853
申请日：2015-08-19
Applicant: Endress + Hauser Flowtec AG
Inventor： Florent Tschambser , Lars Dreher , Thomas Sulzer
Abstract: A method for manufacturing an apparatus for measuring flow of a fluid flowing through a measuring tube of metal using the magneto-inductive principle, comprising the method steps as follows: securing first and second collars of metal externally on the measuring tube with an orientation perpendicular to the tube axis of the measuring tube; lining the measuring tube internally with an electrically non-conductive, elastic liner; and altering a measuring section of the measuring tube located at least partially between the first collar and the second collar by means of cold deformation in such a manner that the cross sectional area of the measuring section is reduced compared with the cross sectional area of an inflow section of the measuring tube located upstream from the measuring section and an outflow section of the measuring tube located downstream from the measuring section.
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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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5.发明授权公开(公告)号：US11982554B2
公开(公告)日：2024-05-14
申请号：US17256485
申请日：2019-05-23
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Lars Dreher , Fred Kappertz
Abstract: Disclosed is a method for commissioning a magneto-inductive flow measuring device having means for producing a magnetic field and at least one measuring electrode pair for sensing a potential difference in a medium. The method includes a settling of the means during a settling time for stabilizing the magnetic field. During the settling time a first voltage time function is applied to the means, wherein after the settling time a measuring time begins, wherein during the measuring time a second voltage time function is applied to the means, wherein the settling time is divided into first time intervals, each of which has a duration, wherein the measuring time is divided into second time intervals, each of which has a duration, wherein an average value of all first interval durations is always less than an average value of all second interval durations.
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Patent Agency Ranking
公开(公告)号：US20240110819A1
公开(公告)日：2024-04-04
申请号：US18257596
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Thomas Sulzer , Florent Tschambser , Werner Wohlgemuth , Lars Dreher
IPC: G01F1/58
CPC classification number: G01F1/584
Abstract: The present disclosure relates to a measuring device including a measuring pipe for conducting a flowable medium. The measuring pipe has an inner lateral surface is designed to be, at least in portions, electrically insulating, and at least one monitoring electrode. The at least one monitoring electrode is arranged on the electrically insulating portion of the inner lateral surface in a medium-contacting manner. The measuring device also includes a measuring apparatus for determining a process property of the medium, and an abrasion detection device which is designed to determine at least one variable corresponding to an abrasion of on the at least one monitoring electrode.
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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
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.
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公开(公告)号：US20240328842A1
公开(公告)日：2024-10-03
申请号：US18578890
申请日：2022-07-04
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Marc Koepke , Fabian Häuselmann , Tulio Paiva Galvao
Abstract: A magneto-inductive flow measurement device for determining a flow-rate-dependent measured variable for a flowable medium, comprises a device for producing a magnetic field, the device for producing the magnetic field comprising a coil arrangement; a device for tapping off a measurement voltage induced in the flowable medium, in particular by means of two preferably diametrically arranged measurement electrodes; an operating circuit configured to apply an operating signal, in particular a voltage signal, to the coil arrangement, the operating signal having operating signal parameters; and a controller circuit configured to control at least one of the operating signal parameters in such a way that a controlled variable does not differ from a predefined setpoint value, the setpoint value comprising a magnetic field energy of proportional magnitude.
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9.发明公开公开(公告)号：US20240175733A1
公开(公告)日：2024-05-30
申请号：US18436336
申请日：2024-02-08
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Lars Dreher , Fred Kappertz
Abstract: Disclosed is a method for commissioning a magneto-inductive flow measuring device having means for producing a magnetic field and at least one measuring electrode pair for sensing a potential difference in a medium. The method includes a settling of the means during a settling time for stabilizing the magnetic field. During the settling time a first voltage time function is applied to the means, wherein after the settling time a measuring time begins, wherein during the measuring time a second voltage time function is applied to the means, wherein the settling time is divided into first time intervals, each of which has a duration, wherein the measuring time is divided into second time intervals, each of which has a duration, wherein an average value of all first interval durations is always less than an average value of all second interval durations.
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公开(公告)号：US20230296419A1
公开(公告)日：2023-09-21
申请号：US18040473
申请日：2021-07-16
Applicant: Endress+Hauser Flowtec AG
Inventor： Florent Tschambser , Lars Dreher , Werner Wohlgemuth , Timothy-James Hug , Thomas Sulzer
CPC classification number: G01F15/14 , C08K5/0091 , G01F1/588
Abstract: The present disclosure relates to a process automation field device, comprising: a container for receiving and/or conducting a medium, the container having an outer surface; a measuring apparatus for determining a process variable of the medium; electronic components for operating the measuring apparatus; and a housing including a housing body, wherein: the measuring apparatus and the electronic components are disposed in the housing; the housing body is disposed on the outer surface; the housing body comprises a composite material; the measuring apparatus and the electronic components are at least partly surrounded by the composite material; and the composite material comprises a polymer matrix and an additive, which comprises at least one chemical compound including an oxidized transition metal from the fourth group of the periodic table. The present disclosure also relates to a method for producing the field device and to use of the additive to improve adhesion.
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