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基于光纤环镜的光纤光栅传感解调系统
引用本文:张锦龙.基于光纤环镜的光纤光栅传感解调系统[J].光学精密工程,2009,17(5):943-950.
作者姓名:张锦龙
作者单位:北京邮电大学电子工程学院,河南大学物理与电子学院
摘    要:提出了一种新型的基于保偏光纤环镜的光纤布拉格光栅传感器解调方案。建立了理论分析模型,研究了保偏光纤环镜结构参数对解调精度影响的特性并进行了数值仿真。搭建了光路系统,设计了能够消除系统结构参数误差影响的基于LabVIEW的参数测定软件、解调系统监控软件和电路模块,进行了传感检测实验,其结果与理论分析相吻合。该系统稳定性好,检测灵敏度高,适用性强,在光纤光栅传感器的应用方面具有重要意义。

关 键 词:传感解调  光纤环镜  LabVIEW
收稿时间:2008-07-15
修稿时间:2008-09-01

Demodulation System for Fiber Grating Sensors based on Fiber Loop Mirror
Abstract:A novel demodulation scheme for fiber Bragg grating sensors based on polarization fiber loop mirror is proposed in this paper. The theoretical analysis model is established. The impact characteristics to the demodulation decision from the fabric parameters of the polarization maintaining fiber loop mirror are researched and the numeric value simulation is processed. The beam path system is established. Moreover, the circuit model the software for measuring the parameters and monitoring the demodulation system based on LabVIEW which can eliminate the impact from the fabric parameter error are both designed. The sensor detection experiment is processed and the result is consistent with the theoretical analysis. The system has high stability, high detection precision and strong applicability. It has a very important significance in the application of the fiber grating sensor.
Keywords:sensor demodulation  fiber loop mirror  LabVIEW
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