Optical fiber sensor used for oil conditioning monitoring
US9702816B2 · kind B2 · utility
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2References
15Claims
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Key dates
| Filing date | Dec 17, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Dec 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0846
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detector for oil condition monitoring includes an optical fiber having a first end and a second end having an end face. A sensor body has a gap in which a sample of the oil may be received and a reflecting surface, the second end of the optical fiber being embedded in the sensor body and having an end face spaced from the reflecting surface across the gap. Light emitted from the optical fiber can pass through the sample of oil and be reflected by the reflecting surface back into the optical fiber. By interferometry of the respective signals, the condition of the oil can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.