【作者】 李营； 朱钧； 李岩； 张书练；

【Author】 LI Ying, ZHU Jun, LI Yan, ZHANG Shu-lian(The State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China)

【机构】 清华大学精密仪器测试技术与仪器国家重点实验室；

【摘要】 分析了目前制约Bragg光纤光栅传感器广泛应用的关键技术:光纤光栅波长解调仪器的实用化,区分应变与温度造成的FBG反射波长的移动。分析、对比了可调谐F-P滤波器等四种主要波长解调方法的测量原理、优缺点以及应用场合。介绍了几种区分应变与温度影响FBG反射波长移动的方法。更多还原

【Abstract】 A review of the key technologies which limited the wide applications of fiber Bragg grating sensors (FBG) were given. The first important technology was the practicability of the de-modulators of wavelength shift. The second was the discriminationbetween strain and temperature effects, either of which could cause wavelength shift. An analysis and comparison of four main interrogating configurations, such as F-P filter, were presented, including their measurement principles, advantages, disadvantages and applications. The methods of discriminating stain and temperature effects were concluded.更多还原