Device for detecting mechanical decoupling pressure
US10288516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jun 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/147
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure detection device including a mount whereon a pressure sensor is attached which comprises a membrane which has a surface intended to be subjected to a pressurized fluid and which is so arranged as to elastically deform according to pressure, and means for determining the deformation of the membrane along an axis normal to a mid-plane of the membrane in the rest state. The membrane is supported by a frame connected to the mount by a mechanical decoupling structure in order to isolate the membrane from stress resulting from a differential thermal expansion between the frame and the mount, with the membrane and the frame being made of the same material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.