Apparatus, method and system for detecting presence of a fluid
US12259296B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/307
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus, method and system are set forth for detection of fluids using Bragg grating sensors, wherein the Bragg grating sensing element comprises an optical fiber having a Bragg grating inscribed therein characterized by optical properties that are dependent upon the periodicity and effective refractive index of the grating, and a package for subjecting the Bragg grating to a change in strain when contacted by a fluid such that periodicity and effective refractive index of the grating changes, whereby when interrogated with laser light any such change in periodicity and effective refractive index may be detected.
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