新型光纤光栅振动传感器测试斜拉索索力  

Application of Optic Fiber Grating Vibration Sensor to Cable Tension Measuring of Cable-stayed Bridges

作　　者：刘胜春[1] 姜德生[1] 李盛[1] 

机构地区：[1]武汉理工大学光纤传感技术研究中心,武汉430070

出　　处：《武汉理工大学学报》2006年第8期110-112,121,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50179029)

摘　　要：介绍了一种新型的基于光纤光栅振动传感器的索力测试系统,并与传统的基于压电式加速度传感器的索力测试系统进行了对比试验研究。结果表明,二者的测试精度相差不大,由于压电式加速度传感器的固有缺陷无法实现索力的远程监测,只适用于索力的定期监测;而基于光纤光栅振动传感器的索力测试系统能够对索力进行实时监测。A new cable tension measuring system based on optic fiber grating vibration sensor is introduced. For testing its performance, we made a experiment in which two cable tensions measuring system, the forenamed one and the other one based on piezoelectricity accelerometer, were both used to measure the tension of a stayed cable as the same time. The result showed that the precision of the two methods had little discrepancy. On account of the inherent limitation of the inherent limitation of the piezoelectricity accelerometer, the system based on piezoelectricity accelerometer usually applies to the inspect of the cable tension, but the system basecl on optic fiber grating vibration sensor can apply to the real time monitoring of the cable tension as well.

关 键 词：斜拉桥 索力测试 传感器 光纤光栅 

分 类 号：TH74[机械工程—光学工程]