DTS performance improvement through variable mode path length averaging
US10690552B2 · kind B2 · utility
0Cited by
4References
17Claims
0Family size
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Key dates
| Filing date | Dec 6, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Oct 4, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method to determine temperature include an optical fiber and at least two pulse laser sources to transmit light pulses with at least two wavelengths into the optical fiber. The system also includes an optical path length modulator to modulate the optical path length of the optical fiber as the light pulses are transmitted into the optical fiber. At least two photodetectors detect backscatter reflected in the optical fiber, and a processor determines the temperature based on the backscatter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.