Polarization-sensitive distributed perturbation sensing and measuring method and system
A polarization-sensitive sensing method technology, which is applied in the direction of transmitting sensing components with optical devices, can solve the problems of large data volume, complex structure, and long data processing time, and achieve the effect of saving costs and simplifying the system
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[0014] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0015] The polarization-sensitive distributed perturbation optical fiber sensing system based on the polarization beam splitter and the balanced amplification photoelectric converter of the present invention is preferably implemented as follows: Figure 4 As shown, it includes a function generator 1, a pulsed laser 2, a polarization controller 3, a circulator 4, a sensing fiber 5, a polarization beam splitter 6, a balanced amplifier photoelectric converter 7, a data acquisition unit 8, and a data processing unit 9.
[0016] The specific implementation steps when the present invention is used for monitoring are as follows:
[0017] 1) The function generator 1 sends out two synchronous trigger signals for triggering the pulse laser 2 and the data acquisition unit 8 respectively.
[0018] 2) The detection pulse optical signal output by the pu...
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