摘要
针对桥梁变形及应力监控的灵敏度较低等问题,论文根据光纤的光弹效应原理,提出一种基于保偏光纤的桥梁变形测量方法,建立了外应力与保偏光纤的偏振特性间的数学关系,设计了—个实验测试系统。测试结果表明利用保偏光纤进行桥梁形变和应力参数监测的可行性。
Due to lower sensitivity of bridge dofonnation and stress measurement, this paper proposes a way using PMF（保偏光纤 ） to neasure bridge deformation based on the principle of fiber- optic（光纤光弹） effect. A mathematical relation of stress and polarization properties is founded, the test system is designed. The results show that it is feasible to make use of PMF to carry out bridge doformation and stress parameter monitoring.
出处
《激光杂志》
CAS
CSCD
北大核心
2007年第2期65-66,69,共3页
Laser Journal
基金
总装国防预演项目(51402040101jw2004)
