一种监测水坝变形的光外差光纤传感器设计  

Design of Optical Heterodyne Fiber Sensor to Monitor Dam Deformation

作　　者：唐晋生[1] 黄雪梅[2] 杨儒贵[1] 

机构地区：[1]西南交通大学理学院,四川成都610031 [2]西南交通大学峨眉分校,四川峨眉山614202

出　　处：《西南交通大学学报》2004年第2期226-228,共3页Journal of Southwest Jiaotong University

基　　金：四川省科学基金资助项目(197070440000)

摘　　要：根据水电站水坝安全的要求,利用光外差技术设计了一种监测水坝变形的光纤传感器.对这种传感器的性能进行测试的结果表明,其精度可达到50nm,满足水坝变形监测的要求.To meet the requirement of dam safety in hydroelectric power stations, a kind of optical fiber sensors was designed based on the optical heterodyne technique, and its properties were tested. The test result shows that the measure precision of this kind of optical fiber sensors can reach to 50 nm so as to meet the requirement of dam deformation monitoring.

关 键 词：水坝变形 监测 光纤 光外差技术 

分 类 号：TN929.11[电子电信—通信与信息系统]