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公开(公告)号：US12215993B2
公开(公告)日：2025-02-04
申请号：US17999473
申请日：2021-04-23
Applicant: Endress+Hauser Flowtec AG
Inventor： Hao Zhu
Abstract: A method includes registering a first mass flow rate portion measurement value {dot over (m)}1 of a first flow portion through measuring tubes of a first oscillator and a second mass flow rate portion measurement value {dot over (m)}2 of a second flow portion through measuring tubes of the second oscillator. A sum of the two mass flow rate portion measurement values gives a mass flow rate total measurement value. The method also includes registering first and second density portion measurement values ρ1, ρ2 of the medium in the flow portions and calculating the effective density measurement value peff as a function of the density portion measurement values ρ1, ρ2 with weightings dependent on the mass flow rate portion measurement values {dot over (m)}1, {dot over (m)}2. The different weighting functions are applied for ascertaining the weightings as a function of the mass flow rate portion measurement values.
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公开(公告)号：US12104937B2
公开(公告)日：2024-10-01
申请号：US17425931
申请日：2020-03-13
Inventor： Yuuji Nakabayashi , Masato Satou , Asako Miyoshi , Masataka Matsuda
Abstract: An ultrasonic flowmeter includes: a flow path body having a flow path through which a fluid to be measured flows; a pair of ultrasonic transducers disposed in the flow path body; a substrate fixed to the flow path body; a sensor plate on which a temperature sensor for detecting a temperature of the fluid to be measured is disposed, the sensor plate being flat; and an arithmetic unit that calculates a flow rate of the fluid to be measured from a propagation time of ultrasonic waves between the pair of ultrasonic transducers and the temperature detected by the temperature sensor. The sensor plate is configured to project from the substrate and to project into a flow path cross-section of the flow path from a sensor hole provided in the flow path body at a time of fixing the substrate to the flow path body.
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公开(公告)号：US11885659B2
公开(公告)日：2024-01-30
申请号：US17654644
申请日：2022-03-14
Applicant: ROTA YOKOGAWA GMBH & CO. KG
Inventor： Peter Reinshaus
CPC classification number: G01F1/8436 , G01F1/8422 , G01F15/02 , G01F25/10
Abstract: A method for compensating the influence of at least one of the parameters from the group consisting of flow rate, viscosity, density and Reynolds number of a fluid to be measured on the measured flow rate and/or density of this fluid in a Coriolis mass flow meter with the aid of an equation using the parameters of the current Reynolds number of the fluid to be measured in the Coriolis mass flow meter, the maximum compensation value for Reynolds numbers approaching zero, the Reynolds number at which the curve of the compensation value has the largest slope, and the slope of the curve of the compensation value at the point Rec. Moreover, the invention relates to a Coriolis mass flow meter with a control device for carrying out the method.
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公开(公告)号：US20240011882A1
公开(公告)日：2024-01-11
申请号：US18254469
申请日：2021-10-28
Applicant: Endress+Hauser Flowtec AG
Inventor： Alfred Rieder
CPC classification number: G01N11/16 , G01N9/32 , G01F15/024 , G01F1/8436 , G01F1/8422 , G01F1/8431 , G01N2009/006
Abstract: A method for determining a viscosity measurement value of a medium conducted within an oscillatory measuring tube includes exciting at least one oscillation mode of the measuring tube; determining a natural frequency of the oscillation mode; determining the density of the medium; determining the damping of the oscillation mode; and determining the viscosity measurement value depending on the density, the natural frequency, and the damping of the oscillation mode, wherein the viscosity measurement value is determined, depending on a specification of the type of medium, with a model corresponding to the specification.
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公开(公告)号：US20230408309A1
公开(公告)日：2023-12-21
申请号：US18245205
申请日：2020-09-14
Applicant: Schlumberger Technology Corporation
Inventor： Songming Huang , Baptiste Germond , Cheng-Gang XIE
IPC: G01F1/56 , G01F1/74 , G01F15/02 , G01F15/063
CPC classification number: G01F1/56 , G01F15/063 , G01F15/02 , G01F1/74
Abstract: Example multiphase fluid meters and related methods are disclosed herein. An example apparatus includes a fluid conduit coupled to tubing. A multiphase fluid is to flow from the tubing into the fluid conduit. The example apparatus includes a flow channel defined in the fluid conduit. The fluid is to flow through the flow channel. The flow channel has a cross-sectional shape different from a cross-sectional shape of the tubing. The example apparatus includes one or more sensors coupled to the flow channel to generate data indicative of a property of the multiphase fluid.
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Patent Agency Ranking
公开(公告)号：US11796362B2
公开(公告)日：2023-10-24
申请号：US16490616
申请日：2018-03-02
Applicant: Schlumberger Technology Corporation
Inventor： Bertrand Theuveny , Ryan Donald Williams , Cheng-Gang Xie , Guillaume Jolivet
CPC classification number: G01F1/74 , G01F15/022 , G01N27/08 , G01N33/2823
Abstract: Conductivity probe fluid property measurement systems and related methods are disclosed herein. An example apparatus includes a flow meter and a fluid conduit to provide a flow path for a fluid relative to the flow meter. The example apparatus includes a conductivity probe coupled to the fluid conduit to generate brine conductivity data of the fluid during flow of the fluid through the fluid conduit. The example apparatus includes a processor to modify fluid flow data generated by the flow meter based on the brine conductivity data.
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公开(公告)号：US20230266154A1
公开(公告)日：2023-08-24
申请号：US18005215
申请日：2021-07-21
Applicant: Chart Inc.
Inventor： Roland Wagner
CPC classification number: G01F1/74 , G01F15/005 , G01F15/022
Abstract: A flow meter assembly for a dispensing line includes a differential pressure transmitter, a pressure transmitter, a temperature transmitter and a controller in communication with each transmitter. The controller is configured to use data collected from the transmitters to determine if there is subcooling or two-phase flow of a fluid flowing through the dispensing line and to meter fluid flowing through the dispensing line if there is subcooling or no two-phase flow.
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8.发明公开公开(公告)号：US20230258486A1
公开(公告)日：2023-08-17
申请号：US18005289
申请日：2021-07-13
Inventor： Philippe LATIL
Abstract: A system for measuring a flow rate of a fluid containing liquid includes a body in which the fluid flows, at least one rotor configured to be rotated by the fluid, and a device for measuring a rotation speed of the rotor. The measuring device includes an optical module configured to transmit an incident light radiation on vanes of the rotor, in a direction substantially perpendicular to an axis of rotation of the rotor and receive a reflected light radiation coming from the vanes. The measuring device further includes a conversion module configured to determine the rotation speed of the rotor according to the reflected light radiation and determine the flow rate of the fluid.
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公开(公告)号：US20230228607A1
公开(公告)日：2023-07-20
申请号：US17577614
申请日：2022-01-18
Applicant: Dell Products L.P.
CPC classification number: G01F15/022 , G01F15/125 , G05F1/625
Abstract: Embodiments of the present disclosure disclose a method and associated device for determining when an air filter needs replaced in an electronic device. The method comprises measuring the power needed to produce a predetermined output in a fan or related device that receives air through the air filter and comparing the measured power to previous measurements. When the amount of power needed is greater than a threshold, a dirty filter message or alert is produced.
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公开(公告)号：US20230194321A1
公开(公告)日：2023-06-22
申请号：US18168345
申请日：2023-02-13
Applicant: Malema Engineering Corporation
Inventor： Deepak Bhagwan Malani , Jayasekar Rajagopalan , Claus Waldersdorff Knudsen , Peter Anthony McCann , Vinh T. Nguyen
CPC classification number: G01F1/8409 , G01D11/30 , G01F1/6965 , G01F15/022
Abstract: A flow sensor includes a flow tube in a form of a tube and a support cast around the flow tube. The support clamps the flow tube and the flow tube extends through the support. The flow sensor is formed by placing the flow tube in a tube cavity of a casting mold and pouring or injecting a liquid resin into a support cavity of the casting mold. The support is formed around the flow tube from solidifying the liquid resin in the support cavity of the casting mold. A temperature of the casting mold during formation of the support does not exceed a threshold temperature to avoid deformation of the flow tube. The flow sensor can also include at least one memory chip that stores calibration information associated with the flow sensor and connectors that allows a controller to read the calibration information from the memory chip.
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