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    APPARATUS FOR DETERMINING A DIFFERENTIAL ZERO OFFSET IN A VIBRATING FLOWMETER AND RELATED METHOD
    1.
    发明申请
    APPARATUS FOR DETERMINING A DIFFERENTIAL ZERO OFFSET IN A VIBRATING FLOWMETER AND RELATED METHOD 审中-公开

    公开(公告)号：US20170131128A1

    公开(公告)日：2017-05-11

    申请号：US15318264

    申请日：2014-07-14

    Applicant: Micro Motion, Inc.

    Inventor： Patrick John Zimmer ,  Christopher Douglas Hill

    IPC: G01F1/84 ,  G01F9/00 ,  G01F15/02

    CPC classification number: G01F1/8436 ,  G01F9/001 ,  G01F15/024

    Abstract: A method for operating a system configured to consume a fluid, such as engine fuel, having at least two flowmeters is provided. The method includes the step of recirculating a fluid in a closed loop having a supply-side flowmeter and return-side flowmeter, such that substantially no fluid is consumed. Fluid flow is measured in the supply-side flowmeter and the return-side flowmeter. Fluid flow measurements are compared between the supply-side flowmeter and return-side flowmeter, and a first differential zero value based on the difference in the fluid flow measurements between the supply-side flowmeter and return-side flowmeter is determined. A first temperature sensor signal value is received and is associated with the first differential zero value. The first differential zero value associated with the first temperature sensor signal value is stored in a meter electronics.

    Differential flowmeter tool
    7.
    发明授权
    Differential flowmeter tool 有权

    公开(公告)号：US10663338B2

    公开(公告)日：2020-05-26

    申请号：US15501759

    申请日：2014-09-04

    Applicant: Micro Motion, Inc.

    Inventor： Patrick John Zimmer ,  Steven M Jones

    IPC: G01F15/02 ,  G01F1/84

    Abstract: A method for determining system accuracy is provided. The method includes the steps of inputting hardware specifications related to a supply flowmeter into a computing device and inputting hardware specifications related to a return flowmeter into the computing device. Additionally, the method includes inputting system parameters into the computing device. System accuracy is calculated with system logic, wherein the system logic receives the inputs based on hardware specifications related to the supply flowmeter, the hardware specifications related to the return flowmeter, and the system parameters. The calculated system accuracy is stored in a computer-readable storage media, and the calculated system accuracy is output.

    Detecting an inaccurate flow rate measurement by a vibratory meter
    8.
    发明授权
    Detecting an inaccurate flow rate measurement by a vibratory meter 有权

    公开(公告)号：US10473512B2

    公开(公告)日：2019-11-12

    申请号：US15562806

    申请日：2015-04-14

    Applicant: Micro Motion, Inc.

    Inventor： Patrick John Zimmer ,  Craig Andrew Riggins

    IPC: G01F25/00 ,  G01F1/84 ,  G01F15/02

    Abstract: A method of detecting an inaccurate flow rate measurement by a vibratory meter is provided. The method includes flowing fluid through the vibratory meter and measuring a flow rate and a density of the fluid with the vibratory meter, and calculating a density change rate of the fluid. The method also includes determining if the measured flow rate is inaccurate based on a comparison between the measured density and a density reference, and a comparison between the density change rate and a density change rate reference.

    Method and apparatus for determining differential density
    9.
    发明授权
    Method and apparatus for determining differential density 有权

    公开(公告)号：US10138836B2

    公开(公告)日：2018-11-27

    申请号：US15506996

    申请日：2014-09-18

    Applicant: MICRO MOTION, INC

    Inventor： Patrick John Zimmer ,  John Ansdell Houghton

    IPC: G01F9/02 ,  F02D41/22 ,  F02M37/00 ,  F02D41/26 ,  G01F1/84 ,  G01F15/02 ,  G01N9/00

    Abstract: A method for operating an engine system 200 comprising an engine 208 configured to consume a fuel, having at least a two flowmeters 214, 216, is provided. The method includes the step of operating an engine 208 disposed between a supply flowmeter 214 of the at least two flowmeters and a return flowmeter 216 of the at least two flowmeters. A first fuel density in the supply flowmeter 214 and a second fuel density in the return flowmeter 216 are measured. The fuel density measurements 317 between the supply flowmeter 214 and return flowmeter 216 are compared and a differential density measurement value, Δρ 319, based on a difference in the second fuel density and the first fuel density is determined. The Δρ 319 is compared to a range of theoretical differential fuel density values, Δρt, and potential fuel contamination is indicated if the Δρ lies outside a range of Δρt values by a predetermined threshold.

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