Distributed optical fibre sensor
US9759633B2 · kind B2 · utility
1Cited by
26References
23Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/3127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a distributed optical fibre sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fibre, as a function of position along the sensor fibre. The sensor uses probe light pulses of different wavelengths. At least some of the probe light pulses may also be of different pulse lengths. The relative phase bias between interferometric signals in backscattered probe light of different wavelength pulses may also be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.