高空间分辨率ROTDR测温主机设计与实践  

Design and Practice of ROTDR Temperature Measurement Host with High Spatial Resolution

作　　者：李军 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《煤矿机械》2017年第11期1-4,共4页Coal Mine Machinery

基　　金：2016年国家重点研发计划专项(2016YFC0801405)

摘　　要：基于分布式光纤测温主机的工作原理,在分布式光纤测温系统的使用过程中,提出了温度补偿方法;另外对光纤飘移补偿定位方法与断裂定位方法进行了分析说明;通过对激光光源、波分复用模块、APD模块、光开关模块及数据采集卡等设计、选型,设计了基于Win CE平台的高空间分辨率ROTDR测温主机,并对主机进行防爆结构处理设计,测试表明主机取样间隔0.2 m,空间分辨率可达0.4 m,温度精度可达±1℃。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 WinCE 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℃.

关 键 词：光纤测温 拉曼 主机 解调算法 嵌入式 空间分辨率 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]