摘要
本文介绍了光纤法 -珀应变传感器的基本原理及优点 ,并用其进行了混凝土固化过程中的收缩应变监测实验 ,在混凝土两天的固化过程中监测到了 1 3 0微应变的收缩应变 .本文还对光纤法 -珀应变传感器的温度稳定性能进行了理论分析及对比实验 ,实验结果表明 ,在一定条件下环境温度对光纤法 -珀应变传感器的影响可忽略不计 ,因此可不用任何温度补偿 .
In this paper,fiber optic Fabry-Perotstrain sensor was employed in monitoring the shrink strain of concreteduring cure period.The principleand experimentwasstudied.About1 3 0 μεof shrink strain has been observed in the experimentof two day′s cure period.The thermal driftexperiment of sensor has also been carried out,and the experiment results indicated that fiber optic Fabry-Perot strain sensor is relatively immunity to ambienttemperature.
出处
《光子学报》
EI
CAS
CSCD
2000年第10期908-912,共5页
Acta Photonica Sinica
基金
重庆市院士基金资助项目
