Patent
US patent no. 7,146,280 B2: Startup and operational techniques for a digital flowmeter
- Documentation:
- Startup and operational techniques for a digital flowmeter are described. The techniques select an optimal mode of operation for the digital flowmeter, depending on a current environment of the flowmeter. 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, as part of a feedback loop. Once an oscillation of the flowtube is achieved and analyzed, a digital synthesis mode of operation may be implemented, in which the analyzed sensor signals are used to synthesize the drive signal.
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(Preview, Version of record, pdf, 1.5MB, Terms of use)
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Authors
- Publisher:
- United States Patent and Trademark Office
- Journal:
- US patent no. 7,146,280 B2: Startup and operational techniques for a digital flowmeter More from this journal
- Publication date:
- 2006-12-05
- Patent number:
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US 7,146,280
- Patent status:
- Issued/granted
- Territory:
- US
- Keywords:
- Pubs id:
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pubs:648179
- UUID:
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uuid:2c024aaf-e22c-42c6-927c-ed9278c822fa
- Local pid:
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pubs:648179
- Deposit date:
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2016-10-06
- ARK identifier:
Terms of use
- Copyright holder:
- Manus Henry and Mayela E Zamora
- Copyright date:
- 2006
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