光纤传感技术用于铁轨温度监测的研究  

Research of Rail Structure Temperature Monitor with Optical Fiber Sensors

作　　者：郭湛[1] 刘凯[2] 王怀彬[3] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京信息工程学院计算机信息系统系,北京100101 [3]天津理工大学计算机系,天津300191

出　　处：《光电子．激光》2006年第11期1369-1371,共3页Journal of Optoelectronics·Laser

摘　　要：对光纤喇曼散射技术用于铁轨温度监测的方法进行了理论和实验研究。采用大功率半导体脉冲激光器为泵浦光源和背向散射法对光纤中的背向喇曼散射(斯托克斯散射和反斯托克斯散射)进行测量。缠绕式光纤传感器模式中采用结果表明,该方法对采用传统方法难以实现的铁轨温度进行监测是可行的,且具有结构简单、成本低廉以及与结构兼容性好的优点。：The research of railway structure temperature inspecting system based on optical fiber back-Raman scatter is stated. Using high-power semiconductor laser launcher as pump source, Raman back-scatter, Stocks and anti-Stocks scatter is measured, intertwisting sensor structure is used in the experiment. Experimental results show the system is much cheaper,simple and easier to monitor the temperature with rail structure which is difficult by traditional method.

关 键 词：半导体激光源 光纤传感 喇曼散射 温度监测 

分 类 号：X924.3[环境科学与工程—安全科学]