Startup And Operational Techniques For A Digital Flowmeter

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

Research output: Patent

3 Downloads (Pure)

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 languageEnglish
Patent numberUS2013000418A1
IPCG0IF I/84
Priority date29/03/02
Filing date26/06/12
Publication statusPublished - 3 Jan 2013
Externally publishedYes

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