可用于建筑结构检测的分布式光纤形变片

本文在光时域反射计（OTDR）和光纤形片的基础上,提出了一种分布式光纤传感器－分布式光纤形变片，该检测方法属于OTDR的损耗调制法，即通过测量粘贴于光纤形变片上的光纤弯曲损耗来获取测量点的应变量或位移量，作者分别在微位移架和悬臂梁进行了位移检测和应变检测，结果表明该分布式光纤形变片提供了一种可检测应变量与位移量的检测方法，值得注意的是，该分布式光纤形变片的传感网络采用时分复用的总线拓扑，能在一根光纤上同时检测多个检测点的变化。

DISTRIBUTED OPTIC FIBER DISTORTION GAUGE FOR ARCHITECTURE CONSTRUCTION

This paper offers to a distributed optic fiber distortion sensor the distributed optic fiber distortion gauge that is based on the optical time domain reflectometer and the optic fiber distortion gauge.This measurement is the modulation of fibre loss in OTDR,i.e.the strain and displacement in monitoring position is obtained from the bending loss of optic fiber bonded on the optic fiber distortion gauge.By examining the displacement and strain in micro displacement rack and the centilever respectively,and the result indicates that the distributed optic fiber distortion gauge is appropriate to monitor both strains and distortion simultaneously.It is noteworthy that the TDM (time distributed multiplexing) bus topology is adopted in the sensing network of the distributed optic fiber distortion gauge that can inspect multiple points in only an optic fiber.