Method and apparatus for continuous readout of fabry-perot fiber optic sensor
US7940400B2 · kind B2 · utility
16Cited by
221References
20Claims
0Family size
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Key dates
| Filing date | Feb 16, 2009 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure measurement system and method are described. The system uses a tunable laser and a Fabry-Perot sensor with integrated transducer. A detector senses the light modulated by the Fabry-Perot sensor. A signal conditioner, which can be located up to 15 km away, then uses the detector signal to determine the displacement of the diaphragm, which is indicative of pressure exerted against the diaphragm. Use of a temperature sensor to generate a signal, fed to the signal conditioner, to compensate for temperature is also contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.