Fault monitoring system for ultralong optical cable and method
A fault monitoring and detection system technology, applied in optical instrument testing, machine/structural component testing, measuring devices, etc., can solve the problem of difficulty in obtaining the temperature and strain information of the optical cable at the fault point, and achieve improved judgment accuracy and high precision. Fault location and diagnosis, the effect of simple structure
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[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0038] On the one hand, such as figure 1 As shown, the embodiment of the present invention provides a fault monitoring system for an ultra-long optical cable, including: a first Brillouin optical time domain detection system 10, a second Brillouin optical time domain detection system 20, an uplink optical fiber 30, Downstream path fiber 40 and multiple optical repeaters 50 arranged in each section of the upstream path fiber and downstream path fiber. Both ends of the upstream path fiber and the downstream path fiber are connected to the first Brillouin optical time domain detection system and The second Brillouin optical time domain detection system is connected. The first Brillouin optical time domain detection system and the second Brillou
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