The fiber grating sensing system consists of four parts, Broadband Light-source, FBG/LPG based sensor, Signal demodulation section and Signal process section.
光纤光栅传感系统一般包括光源、传感器（光纤光栅）、光路解调部分、数据采集分析终端等部分。
2
In the end, temperature and strain performance of FBG is tested and strain-sensing demodulation experiment based on tunable light source is made.
最后，进行了光纤布拉格光栅的温度和应变特性测试实验，以及基于可调谐光源的应变传感解调实验。
3
An improved white light system was developed for sensor fabrication. This system is also used as the signal demodulation system providing very high resolution.