Strain gauge type pressure sensing
US11137309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensor apparatus for strain gauge pressure sensing includes a plurality of strain gauges including a first strain gauge and a second strain gauge. The pressure sensor apparatus also includes a diaphragm coupled between the plurality of strain gauges and an object configured to apply pressure to the diaphragm. The diaphragm has a first portion and a second portion. The first portion has a first thickness between the object and the first strain gauge. The second portion has a second thickness between the object and the second strain gauge. In an uncompressed state, the second thickness is greater than the first thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.