Correcting frequency in flowtube measurements

Manus Henry; Mayela E.  Zamora

Correcting frequency in flowtube measurements

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

University of Oxford

Research output: Patent

Abstract

Techniques are described for accurately measuring a density or other parameter of a fluid traveling through a vibratable conduit, using a flowmeter. The techniques involve obtaining measurements of a frequency of vibration of the conduit, as a function of a phase difference between two sensors measuring the vibration. Using the measurements, a corrected frequency corresponding to a zero phase difference can be estimated, and this corrected frequency can be used to perform density calculations. These techniques remove an undesirable dependency between the frequency/phase difference variables.

Original language	English
Patent number	USOO7509219B2
IPC	G01F 17/00
Priority date	13/08/03
Filing date	25/04/06
Publication status	Published - 24 Mar 2009
Externally published	Yes

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Correcting frequency in flowtube measurements
Henry, M. (Inventor) & Zamora, M. E. (Inventor), 24 Mar 2009, IPC No. G01F 1/58, G01F 1/84, G01F 17/00, Patent No. US7509219B2, 25 Apr 2006, Priority date 13 Aug 2003, Priority No. US49455603P
Research output: Patent

Open Access
Correcting frequency in flowtube measurements
Henry, M. (Inventor) & Zamora, M. (Inventor), 20 Jun 2006, IPC No. G01F 1/58, G01F 1/84, G01F 17/00, G01F 23/00, G01L 7/00, G01N 11/00, G01F, Patent No. US7065455B2, 30 Jul 2004, Priority date 13 Aug 2003, Priority No. US49455603P
Research output: Patent
Correcting frequency in Flowtube Measurements
Henry, M. (Inventor) & Zamora, M. E. (Inventor), 2 Nov 2006, IPC No. G01F 1/84, Patent No. US2006243062A1, 25 Apr 2006, Priority date 13 Aug 2003, Priority No. US49455603P
Research output: Patent

Cite this

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title = "Correcting frequency in flowtube measurements",

abstract = "Techniques are described for accurately measuring a density or other parameter of a fluid traveling through a vibratable conduit, using a flowmeter. The techniques involve obtaining measurements of a frequency of vibration of the conduit, as a function of a phase difference between two sensors measuring the vibration. Using the measurements, a corrected frequency corresponding to a zero phase difference can be estimated, and this corrected frequency can be used to perform density calculations. These techniques remove an undesirable dependency between the frequency/phase difference variables.",

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AB - Techniques are described for accurately measuring a density or other parameter of a fluid traveling through a vibratable conduit, using a flowmeter. The techniques involve obtaining measurements of a frequency of vibration of the conduit, as a function of a phase difference between two sensors measuring the vibration. Using the measurements, a corrected frequency corresponding to a zero phase difference can be estimated, and this corrected frequency can be used to perform density calculations. These techniques remove an undesirable dependency between the frequency/phase difference variables.

M3 - Patent

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Correcting frequency in flowtube measurements

Abstract

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Research output