Mass flow meter
US7500404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2007 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Mar 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Strain gauges A, B for a bending portion cross each other and are stuck to a strain gauge sticking portion 7 for a bending portion located in a portion applying centrifugal force or centripetal force of a fluid thereto in a bending portion 4 in a bending circular tube 1 formed by bending a tube circulating the fluid therein. Further, strain gauges C, D for compensating static pressure and temperature cross each other and are stuck to a strain gauge sticking portion 11 for a straight tube portion located in a straight tube portion 8 connected to the bending portion 4 in the bending circular tube 1. Detecting signals of strain gauges A, B for a bending portion and strain gauges C, D for compensation are guided to an opposite position of a bridge circuit 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.