Pressure sensor with means for re-calibration
US6581436B2 · kind B2 · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 2002 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | May 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L27/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensor for measuring a pressure p contains a membrane with a front and a rear clamped into a body. The pressure p can be applied to the rear of the membrane. The front of the membrane is actively linked to a piston. In addition, a force transmitter is present with which a predetermined force can be applied to the piston. For the purpose of re-calibration, the membrane of the pressure sensor can be deformed by the force transmitter under precisely defined conditions and the output signal re-calibrated. A positioner can also be foreseen instead of the force transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.