摘要
对光纤布拉格光栅多点传感进行了理论研究与实验研究。通过定义多点传感信号分辨因子 ,分析了探测器对传感信号的分辨条件 ,给出了多点温度与应变传感原理的数学表达式 ,并探讨了由光源带宽决定的系统实际复用能力。设计并实现了具有一定特色的光纤布拉格光栅多点传感网络系统 ,利用该系统对温度、位移进行了双路、多点传感实验分析与理论验证 ,实验结果与多点传感理论分析相符合。
The theoretical and experimental study of fiber grating multi point sensing made. By means of defining the signal resolution factor of multi point sensing, the condition of signal resolution has been analyzed, the mathematical expression of the sensing principle of multi point temperature and strain have been given and the system multiplexing capacity by dominated optical source bandwidth has been researched. The fiber grating multi point sensing network system with some features has been designed and realized. By using this sensing network system, the multi\|point sensing experimental analyses and theoretical verification of temperature and displacement sensing have been completed in the two channels of the sensing network system. The experimental results are in good agreement with the theoretical analyses of multi point sensing.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2004年第3期330-336,共7页
Acta Optica Sinica
基金
国家"八六三"高科技计划基金 (2 0 02AA313110 )
南开大学人事处科研启动基金资助课题
