光纤光栅传感系统的现状及发展趋势

Status quo and development trend of fiber grating sensor system

介绍了光纤光栅传感系统的构成,分析了光纤光栅传感系统所用的3种不同的光源LED,LD和掺铒光源的性能,阐述了光纤光栅传感器的工作原理和各种不同的温度和应力的区分测量方法,描述了滤波法、干涉法、可调窄带光源法等几种常用的信号解调技术,最后,提出适应未来的需要如何对光纤光栅传感系统的光源、光纤光栅传感器和信号解调进行优化。

The scheme of fiber grating sensor system is introduced.The characteristics of different fiber sources such as LED,LD and Er-doped fiber sources are analyzed.The principles of fiber grating sensor system and different discriminating measurements of temperature and strain are described.The different signal demodulations techniques which are filter,interference and tunable narrow band light source are described,and finally it is proposed how to get the best designs of fiber source,fiber grating sensor and signal demodulation in fiber grating sensor system to fit for the need of future.