Multi-point pressure sensor and uses thereof
US8805128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Oct 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L11/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensing device for detecting a physical parameter exemplified by pressures, strains, temperatures, indices of refraction, and combinations thereof. The sensing device comprises a probe having a housing for sealably mounting therein an optical fiber. The optical fiber is provided at its distal end with at least two spaced apart fiber Bragg gratings. The proximal end of the probe is engagable with a holder, and is in communication with fiber Bragg grating interrogation systems. Spacers and seals may be provided about the optical fiber between the fiber Bragg gratings. An orifice may be provided and sealed with a resilient membrane to provide a contained airspace around each fiber Bragg grating. The contained airspace may be optionally filled with a fluid or a gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.