Startup and operational techniques for a digital flowmeter

Manus Henry

Startup and operational techniques for a digital flowmeter

University of Oxford

Research output: Patent

Abstract

Startup and operational techniques for a digital flowmeter are described. For example, during a startup operation of the flowmeter, the mode of operation might include a random sequence mode, in which filtered, random frequencies are applied as a drive signal to a flowtube associated with the digital flowmeter. Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal. In a digital synthesis mode of operation, the analyzed sensor signals are used to synthesize the drive signal. The digital flowmeter may revert to a previous mode to regain stable and desired oscillation of the flowtube, such as might be required during a recovery operation associated with a disturbance to an operation of the digital flowmeter.

Original language	English
Publication status	Published - 7 Jan 2014
Externally published	Yes

6 Patent

Startup And Operational Techniques For A Digital Flowmeter
Henry, M. (Inventor) & Zamora Mayela, E. (Inventor), 3 Jan 2013, IPC No. G0IF I/84, Patent No. US2013000418A1, 26 Jun 2012, Priority date 29 Mar 2002, Priority No. US36815302P
Research output: Patent

Open Access
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Startup and operational techniques for a digital flowmeter
Henry, M. (Inventor) & Zamora, M. (Inventor), 5 Dec 2006, IPC No. G01F 1/00, G01F 1/84, G01F 25/00, G06F 1/00, G06F 19/00, Patent No. US7146280B2 , 29 Jun 2005, Priority date 29 Mar 2002, Priority No. US36815302P
Research output: Patent
Startup and operational techniques for a digital flowmeter
Henry, M. (Inventor) & Zamora, M. E. (Inventor), 10 Nov 2005, IPC No. G01F 1/00 , Patent No. US2005251351A1, 29 Jun 2005, Priority date 29 Mar 2002, Priority No. US36815302P
Research output: Patent

Cite this

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abstract = "Startup and operational techniques for a digital flowmeter are described. For example, during a startup operation of the flowmeter, the mode of operation might include a random sequence mode, in which filtered, random frequencies are applied as a drive signal to a flowtube associated with the digital flowmeter. Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal. In a digital synthesis mode of operation, the analyzed sensor signals are used to synthesize the drive signal. The digital flowmeter may revert to a previous mode to regain stable and desired oscillation of the flowtube, such as might be required during a recovery operation associated with a disturbance to an operation of the digital flowmeter.",

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AB - Startup and operational techniques for a digital flowmeter are described. For example, during a startup operation of the flowmeter, the mode of operation might include a random sequence mode, in which filtered, random frequencies are applied as a drive signal to a flowtube associated with the digital flowmeter. Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal. In a digital synthesis mode of operation, the analyzed sensor signals are used to synthesize the drive signal. The digital flowmeter may revert to a previous mode to regain stable and desired oscillation of the flowtube, such as might be required during a recovery operation associated with a disturbance to an operation of the digital flowmeter.

M3 - Patent

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Startup and operational techniques for a digital flowmeter

Abstract

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