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《Coal Mine Machinery》 2017-11
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Design and Practice of ROTDR Temperature Measurement Host with High Spatial Resolution

LI Jun;Chongqing Research Institute of China Coal Technology and Engineering Group Corp;National Key Lab for Gas Disaster Monitoring and Emergency Technology;  
Based on the working principle of distributed optical fiber temperature measuring host, the temperature compensation method is put forward in the process of distributed optical fiber temperature measurement system. In addition, the optical fiber drift compensation location method and fracture location method are analyzed and analyzed. Wavelength module, APD module, optical switch module and data acquisition card. The design of the explosion-proof structure of the host is designed based on the high spatial resolution ROTDR temperature measurement platform of Win CE platform. The test shows that the host sampling interval 0.2 m, the spatial resolution of up to 0.4 m, the temperature accuracy of up to ± 1 ℃.
【Fund】: 2016年国家重点研发计划专项(2016YFC0801405)
【CateGory Index】: TU892
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