Resonant pressure transducer
US5317917A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0019
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A resonant pressure transducer, having a deformable diaphragm or membrane exposed to an ambient environment wherein a pressure force to be measured exists, is provided. A transducer according to the present invention comprises a converter for transmitting the pressure force experienced by the diaphragm to a resonator vibrated by an exciter whose resonant frequency is a function of the intensity of the ambient pressure force to be determined. The converter and resonator are mounted in a rigid frame. The converter has flexible bending means able to absorb the bending moments resulting from the deformation of the diaphragm, so as to transmit to the resonator a tension or a compression force free from bending moments that generate stresses at the entrance of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.