Optical fiber sensor system for detecting temperature changes in an aircraft
US10260964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2014 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to an optical fiber sensor system (10) arranged to detect a temperature change in a zone (2, 3, 4) in an aircraft (1) having at least one zone (2, 3, 4). The optical fiber sensor system (10) comprises at least one optical fiber (11, 21, 31, 41) comprising a plurality of Fiber Bragg Gratings (20, 30, 40) for detecting a temperature change. Each of the Fiber Bragg Gratings (20, 30, 40) is reflecting radiation within a predetermined wavelength range. A radiation source unit (13) is arranged to emit radiation into the at least one optical fiber (11, 21, 31, 41). A radiation detector unit (14) is arranged to receive radiation from the at least one optical fiber (11, 21, 31, 41). A processing unit (15) is configured to identify a spectral response (22, 32, 42) of the received radiation and to determine a temperature change from the spectral response (22, 32, 42) of the received radiation in a predetermined wavelength range. Each of the at least one zone (2, 3, 4) solely has Fiber Bragg Gratings (20, 30, 40) which are reflecting radiation within the same predetermined wavelength range. The disclosure further relates to method for detecting a temperature chan…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.