SYSTEM AND METHOD OF DISTRIBUTED FIBER OPTIC SENSING INCLUDING INTEGRATED REFERENCE PATH
摘要
An apparatus for estimating a parameter includes: an optical fiber including at least one core configured to transmit an interrogation signal and including a plurality of sensing locations distributed along a measurement length of the optical fiber and configured to reflect light; a reference optical path configured to transmit a reference signal, the reference optical path disposed in a fixed relationship to the at least one core and extending at least substantially parallel to the at least one core, the reference optical path including a reference reflector that defines a cavity length corresponding to the measurement length; a detector configured to receive a reflected return signal; a reference interferometer configured to receive at least a reference signal and generate an interferometric reference signal; and a processor configured to apply the interferometric reference signal to the reflected return signal to compensate for one or more environmental parameters.
申请公布号
WO2013012495(A3)
申请公布日期
2013.04.25
申请号
WO2012US42401
申请日期
2012.06.14
申请人
BAKER HUGHES INCORPORATED;DUNCAN, ROGER;CHILDERS, BROOKS;COUCH, PHILIP, ROBIN
发明人
DUNCAN, ROGER;CHILDERS, BROOKS;COUCH, PHILIP, ROBIN