Signal processing method, signal processing apparatus, and Coriolis flowmeter
US8725433B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 1, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/8477
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A signal processing method, a signal processing apparatus, and a Coriolis flowmeter are capable of always performing measurement with constant precision and performing phase measurement with high filtering performance and a small amount of computation even when a temperature of a fluid to be measured changes, air bubbles are mixed into the fluid to be measured, or the fluid to be measured rapidly changes from a gas to a liquid. The Coriolis flowmeter detects at least one of a phase difference and a vibration frequency proportional to a Coriolis force acting on at least one flow tube or a pair of flow tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.