Optics: measuring and testing – By light interference – Having partially reflecting plates in series
Reexamination Certificate
2011-05-10
2011-05-10
Connolly, Patrick J (Department: 2877)
Optics: measuring and testing
By light interference
Having partially reflecting plates in series
C356S480000
Reexamination Certificate
active
07940400
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.
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Berthold John W.
Lopushansky Richard L.
Booth Albanesi & Schroeder LLC
Connolly Patrick J
Halliburton Energy Service,s Inc.
Wustenberg John W.
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