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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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公开(公告)号：US12061105B2
公开(公告)日：2024-08-13
申请号：US17757219
申请日：2020-11-20
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu
CPC classification number: G01F1/8436 , G01F1/50 , G01N9/32 , G01N11/08
Abstract: The present disclosure relates to a method for operating a flow measuring point for media having at least one liquid phase, the flow measuring point including: a Coriolis measuring device for measuring the mass flow rate and the density of a medium flowing through a pipeline; and a pressure-difference measuring apparatus for sensing the pressure difference between a flow region arranged upstream of the Coriolis measuring device and a flow region arranged downstream of the Coriolis measuring device, wherein a flow measurement based on measured values of the pressure difference is corrected by means of measured values acquired using the Coriolis measuring device.
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Patent Agency Ranking
公开(公告)号：US12044559B2
公开(公告)日：2024-07-23
申请号：US17758082
申请日：2020-12-01
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Josef Hubensteiner
CPC classification number: G01F1/34 , G01F1/8477
Abstract: A method for monitoring flow of a medium by means of a pressure difference measuring device and a Coriolis mass flowmeter having two oscillators, which comprise, in each case, a bent measuring tube pair, which are arranged on top of one another and connected for parallel flow between the two pressure measuring points of the pressure difference measuring device, comprising steps as follows: Registering a pressure difference between the first pressure measuring point and the second pressure measuring point; registering a first density measured value based on at least a first oscillation frequency of the first oscillator; registering a second density measured value based on at least a second oscillation frequency of the second oscillator; ascertaining a flow measured value based on the pressure difference, when a difference between the first density measured value and the second density measured value is less than a density difference limit value.
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67.发明公开公开(公告)号：US20240210295A1
公开(公告)日：2024-06-27
申请号：US18555387
申请日：2021-03-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu , Alfred Rieder
IPC: G01N9/00
CPC classification number: G01N9/002 , G01N2009/006
Abstract: A method for operating a density meter that includes at least one oscillating measuring tube for conducting a medium, an exciter disposed on the measuring tube for exciting oscillation modes of the at least one measuring tube, and a support body, wherein the measuring tube has inlet-side and outlet-side end portions that are connected to the support body, includes: exciting at least three oscillation modes of the measuring tube; determining eigenfrequency measurement values of the at least three oscillation modes; determining a density measurement value of the medium, taking into consideration a gas load that may be present; and determining a characteristic property of the at least one measuring tube on the basis of the eigenfrequencies of the three oscillation modes.
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68.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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公开(公告)号：US20240151621A1
公开(公告)日：2024-05-09
申请号：US18548943
申请日：2022-02-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Ennio Bitto , Benjamin Schwenter , Marc Werner
IPC: G01N9/32
CPC classification number: G01N9/32
Abstract: A modular measuring device for determining a density of a measurement medium includes a support module, a first measuring tube module and at least one further measuring tube module, wherein the support module has a receptacle for detachably fastening the measuring tube modules, a contactless temperature sensor, a primary exciter component along with a primary sensor component, wherein each measuring tube module has a restraint complementary to the receptacle of the support module, a vibrating tube, a secondary exciter component complementary to the primary exciter component, and a secondary sensor component complementary to the primary sensor component, wherein each vibrating tube of the measuring tube modules has a different tube diameter, a straight first tube leg, a straight second tube leg, a curved first tube bend and a curved second tube bend.
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公开(公告)号：US20240102844A1
公开(公告)日：2024-03-28
申请号：US18530833
申请日：2023-12-06
Applicant: Endress+Hauser Flowtec AG
Inventor： Kyle Shipps , Jerry E. Stevens
CPC classification number: G01F25/14 , G01F1/84 , G01F15/005
Abstract: A calibration system and methods for flow metering technologies integrates a known primary reference standard (e.g., a gravimetric scale), configured to determine a mass of calibration fluid, in parallel with surrogate secondary masters (e.g., Coriolis effect flowmeters) connected via an adjustable flowpath having a closed loop mode, including a meter bank, a pump and a measuring section, and an open loop mode, including a reservoir, the meter bank, the pump, the measuring section and the primary reference standard, which enables calibration duality and redundant meter under test confirmation of calibration factors. The disclosed systems and methods enable life cycle assurance of the primary reference standard and the secondary masters' standard reliability and reproducibility over time and, as a redundant system, enable calibration of multiple flow metering technologies, such as, for example, volumetric, mass, density, viscosity and Reynolds number-reliant technologies, in one homogenous system.
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