Leakage point locating system of optical fiber sensing natural gas pipeline leakage monitoring system
A technology for natural gas pipelines and monitoring systems, applied in the field of leak point location systems, can solve the problems of being easily affected by environmental factors, high false alarm rate, low sensitivity, etc.
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[0039] The present invention will be further described in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.
[0040] Embodiment. The composition of this example is as figure 1 As shown, an optical fiber sensor is installed at a certain distance on the pipeline body. Each optical fiber sensor is connected to the transmission optical path through the optical path adapter, and the transmission optical path is connected to the light source and photoelectric detector; the output of the photoelectric detector includes the functions of leakage signal identification and event location. The signal acquisition and processing module, the output of the signal acquisition and processing module is connected to the microcomputer through the external interface. After processing by the signal acquisition and processing module, the sensor based on the frequency division multiplexing method realizes the de...
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