Li Yongqian, Wang Yu, Yao Guozhen. Comparative analysis of FBG vibration sensing demodulation methods[J]. 2014,(4):46-50. DOI: 10.13756/j.gtxyj.2014.04.015.
In order to select a rational Fiber Bragg Grating(FBG)vibration demodulation scheme in accordance with the vibration detection requirements and enhance the performance of FBG vibration sensing demodulation systems
this paper dissects in depth various factors affecting the system demodulation performances
compares the system sensitivity and demodulation range of matching FBG method
edge filter method and laser matching method by using MATLAB software and analyses the variation trends of the sensitivity and demodulation range of these three methods when 3dB bandwidth of FBG is changed.The results have some value of reference for rationally building an FBG vibration sensing demodulation system.
关键词
光纤布拉格光栅振动解调系统灵敏度解调范围
Keywords
FBGvibration demodulation sensing systemsensitivitydemodulation range