Fiber Bragg grating-based pressure sensor for a pressure bottle
US11162852B1 · kind B1 · utility
3Cited by
7References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 8, 2020 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Sep 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor to sense pressure in a pressure bottle and a method of assembling the sensor involve two or more fiber Bragg gratings (FBGs) affixed to a different radial location of a diaphragm seal of the pressure bottle. The sensor includes a light source to provide incident light to the two or more FBGs, and a photodetector to detect reflected light resulting from the two or more FBGs. Processing circuitry determines a pressure change in the pressure bottle based on the reflected light resulting from each of the two or more FBGs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.