Vibrating beam pressure sensor
US4311053A · kind A · utility
11Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1980 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0033
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor providing an output indicating pressure including means to excite a vibrating beam at its natural frequency, and means to load the beam in response to pressure to alter the natural frequency of the beam. The frequency output is sensed by a capacitor pick off mounted on the same side of the beam as the means to excite the beam. Changes in the output frequency provides an indication of the pressure being measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.