Distributed temperature sensor enhancement by stimulated Raman suppression
US10161811B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Nov 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distributed temperature sensor and a method of determining temperature are described. The distributed temperature sensor includes an optical fiber to filter or remove Stokes Raman scatter and prevent stimulated Raman scatter and a light source to inject light into the optical fiber. The distributed temperature sensor also includes a photodetector to detect light energy resulting from the light injected into the optical fiber, the light energy including anti-Stokes Raman scatter and Rayleigh scatter; and a processor to determine temperature based on a ratio of the anti-Stokes Raman scatter and the Rayleigh scatter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.