分布式光纤温度传感器新测温原理的研究

Research of a new temperature measure principle of distributed optical fiber temperature sensors

介绍了分布式光纤温度传感器的工作原理和应用状况,分析了光纤中放大的自发拉曼散射现象及其时域特性.提出了一种基于光纤中放大的自发拉曼散射光脉冲信号温度效应的新温度测量原理,并将其应用于分布式光纤传感器系统,进而讨论了基于新测温原理的实验现象和实验数据.

In this paper, the working principle and the application status of distributed optical fiber temperature sensors are introduced briefly. The amplified spontaneous Raman scattering phenomenon in optical fiber and its time domain characteristics are analyzed. A new temperature measure principle based on the temperature effect of amplified spontaneous Raman scattering signals in optical fiber is put forward, and the new principle is applied to distributed optical fiber temperature sensor systems. Experiment phenomenon and data derived from the new principle are discussed in detail.