Drive techniques for a digital flowmeter

Manus Henry (Inventor), E Zamora Mayela (Inventor)

Research output: Patent

Abstract

A flowmeter comprises a vibratable flowtube, a sensor connected to the flowtube for sensing the motion of the flowtube and a driver connected to the flowtube to impart energy to the flowtube. A random frequency generator generates random frequency signals 1708. A control and measurement system supplies the random frequency signals to the driver during a first mode of operation of the flowmeter. The random frequency signals may be filtered 1710 to remove unwanted frequency components. The control and measurement system is able to transition the flowmeter into a second mode of operation, characterised by a second drive signal. The fluid flow may be two or three phase (e.g. water, oil and gas) and the flowmeter may measure the mass flowrate or density of the fluid. A temperature or pressure sensor may be provided.

Original languageEnglish
Patent numberGB2428090B
IPCG01F 1/84
Priority date29/03/02
Filing date31/03/03
Publication statusPublished - 17 Jan 2007
Externally publishedYes

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  • Drive Techniques For A Digital Flowmeter

    Henry, M. & Zamora, M. E., 19 Dec 2013, IPC No. G01F 1/ 84 A I, Patent No. US2013333484, 22 May 2013, Priority date 22 May 2013, Priority No. US201313900104

    Research output: Patent

  • Drive Techniques For A Digital Flowmeter

    Henry, M. & Zamora, M. E., 10 Feb 2011, IPC No. G01F 1/ 00 A I, Patent No. US2011035166, 6 Aug 2010, Priority date 6 Aug 2010, Priority No. US20100852008

    Research output: Patent

  • Drive techniques for a digital flowmeter

    Henry, M. & Zamora, M. E., 8 Dec 2004, IPC No. G01F 25/ 00 A I, Patent No. GB2402486, 31 Mar 2003, Priority date 31 Mar 2003, Priority No. WO2003US09703

    Research output: Patent

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