Distributed optical fibre sensor
US9574970B2 · kind B2 · utility
1Cited by
18References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/3127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a distributed optical fiber sensor for detecting one or more physical parameters indicative of an environmental influence on a sensor optical fiber, as a function of position along the sensor fiber. 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.