滑坡崩塌岩体推力监测系统的研究

The Study on Rock Body Thrust Monitoring System with OTDR Distributing Optical Fiber

提出了一种用弹膜片和微弯调制机构进行压力传感,用光时域反射探测(OTDR)技术进行测量的分布式光纤压力传感方法。全面阐述了单膜光纤微弯压力传感原理及对岩体推力进行监测的系统,对灵敏度和空间分辨率进行了分析、标定。该传感器具有高灵敏度、高空间分辨率、工程实用性好的特点,并进行了野外试验。

The paper brings forward a sort of pressure sensor that made of stretch film piece and slightly bend concoct construct, it use OTDR distributing optical fiber pressure sensor. It roundly expatiate theory of single slightly bend optical fiber's pressure sensor and system of measure rock body thrust, analyses and demarcate delicacy and space distinguish. The optical fiber pressure sensor have characteristic of high delicacy and pace distinguish and finer practicability, passed field test.