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一种新型光纤光栅复用传感解调技术的研究
引用本文:李志全,黄丽娟,吴飞,王莉,张晓明.一种新型光纤光栅复用传感解调技术的研究[J].光电子.激光,2004,15(5):569-571.
作者姓名:李志全  黄丽娟  吴飞  王莉  张晓明
作者单位:燕山大学仪器科学与工程系,秦皇岛,066000
摘    要:用宽带光源和可调谐光滤波器(TOF)构成可调谐窄带光源,对测量光纤光栅(FBGs)阵列和参考FBGr进行波长扫描,借助光电探测器和信号处理系统实现复用传感系统的解调。实验证明,该解调方案是有效可行的,且可获得较高的信噪比和测量精度,具有对40个以上FBGs传感网络进行寻址解调的潜在能力。

关 键 词:光纤Bragg光栅  FBG  复用传感  波长扫描  解调技术  光电探测器  信号处理系统
文章编号:1005-0086(2004)05-0569-03

Study on a Novel Demodulation Technique for a Multiplexed Fiber Bragg Grating Sensing System
LI Zhi-quan,HUANG Li-juan,WU Fei,WANG Li,ZHANG Xiao-ming.Study on a Novel Demodulation Technique for a Multiplexed Fiber Bragg Grating Sensing System[J].Journal of Optoelectronics·laser,2004,15(5):569-571.
Authors:LI Zhi-quan  HUANG Li-juan  WU Fei  WANG Li  ZHANG Xiao-ming
Affiliation:LI Zhi-quan~*,HUANG Li-juan,WU Fei,WANG Li,ZHANG Xiao-ming
Abstract:Sensing fiber Bragg grating(FBGs) array and reference FBGr are scanned by a tunable narrow-band light source composing a broad-band source and a tunable optical filter(TOF).Multiplexed sensing system is then demodulated by virtue of photo-detector and signal processing system.Experiments demonstrate that this demodulation scheme is feasible and higher signal-noise ratio and measuring accuracy can be acquired.Furthermore,this system has the potentiality of interrogating and modulating senor network with over forty FBGs.
Keywords:fiber Bragg grating(FBG)  multiplexed sensing  wavelength scanning  demodulation
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