【摘要】 光纤传感器可构成传感网络,实现分布式测量,广泛应用于大型建筑物的结构健康监测等方面,因此分布式光纤传感技术成为近年来光纤传感领域的研究热点。文章通过分布式光纤测温系统的工作原理、特点及性能等方面,从基于光纤后向散射的光时域及频域反射技术的分布式光纤测温和基于光复用技术的光纤光栅分布式测温的分布式光纤测温技术两个研究方向进行了综述;同时阐述分析了两个方向在建筑节能测温中的应用情况,并提出了展望。更多还原

【Abstract】 Optical fiber sensors may constitute a sensor network,can accomplish distributed measurement,and is widely used in structural health monitoring of large buildings,so it becomes a research hotspot in the field of optical fiber sensing in recent years.This paper discusses two research directions of distributed optical fiber temperature sensing technology in its principles of work,characteristics and performance,which include the distributed fiber sensors of time domain and frequency domain reflection technology based on the optical fiber backscattering and the distributed fiber grating sensors based on optical multiplexing technology,The paper also analyzes the application of two directions in building energy-saving temperature and gives a prospect.更多还原