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《Journal of Transducer Technology》 2005-03
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Status quo and development trend of fiber grating sensor system

YU Da-kuan, QIAO Xue-guang, JIA Zhen-an, WANG Min (Optical Fiber Sensing Lab,Xi’an Shiyou University,Xi’an 710065,China)  
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.
【Fund】: 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)
【CateGory Index】: TP212.9
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