Differential pressure transducer with Fabry-Perot fiber optic displacement sensor
US7134346B2 · kind B2 · utility
12Cited by
22References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | May 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L13/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A differential pressure transducer which incorporates a Fabry-Perot sensor for direct quantitative measurements of the distance displaced by a piston abutting two pressure boundaries is described. The apparatus includes a piston with an annular protrusion which is fitted into a transducer housing having a peripheral groove that serves as a stop to prevent damage to the in overpressure situations. A method of measuring differential pressure using a Fabry-Perot sensor is also contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.