Abstract : this paper briefly introduces the working principle of distributed optical fiber temperature sensor ( dofts ) system and analyzes the main factors causing instability of the system . methods to improve the stability of the system are discussed here . and the effect of the methods are compared at last 文摘:简要介绍了分布式光纤温度传感器系统的工作原理，分析了引起系统不稳定的主要因素，提出了提高系统稳定性的方法，最后比较了提高系统稳定性的几种方法的效果。
