Differential pressure transducer
US4306460A · kind A · utility
11Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1979 |
| Grant date | Dec 22, 1981 |
| Priority date | — |
| Expiry date | Dec 13, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0052
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A differential pressure transducer having a cantilever and a semiconductor strain gauge attached to each side of the cantilever at an intermediate portion of the latter. The cantilever has one end fixed by electron beam welding to a fixing member and the other end left for free displacement in response to a differential pressure. The displacement of the other end of the cantilever is detected as changes in the electric resistances of the semiconductor strain gauges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.