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

作　　者：禹大宽[1] 乔学光[1] 贾振安[1] 王敏[1] 

机构地区：[1]西安石油大学光纤传感实验室,陕西西安710065

出　　处：《传感器技术》2005年第3期4-6,共3页Journal of Transducer Technology

基　　金：国家"863"高技术研究发展计划资助项目(2002AA313150);国家自然科学基金资助项目(69877025);国家教育部科学技术重点项目(02190);陕西省自然科学基金资助项目(2000C34);陕西省教育厅科学技术项目(02JK158)

摘　　要：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.

关 键 词：光纤BRAGG光栅 光源 区分测量 信号解调 优化 

分 类 号：TN253[电子电信—物理电子学]