Zero point drift compensating flowmeter
US9689729B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 9, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Dec 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A small and light-weight flowmeter realizes the compensation of a zero point drift. A mass flowmeter includes: a centrifugal force/centripetal force detection strain gauge adhered to a part acted upon by a centrifugal force or a centripetal force of fluid in a pipe line in which the fluid flows and a flow rate zero point drift compensation strain gauge adhered to a position different from that of the centrifugal force/centripetal force detection strain gauge. A pulse wave propagation time between the two points is used to compensate a zero point drift of a flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.