基于FPGA的FBG光纤光栅解调系统  

Fiber Bragg Grating Demodulation System Based on FPGA

作　　者：何彦璋[1] 隋广慧[1] 常欢[1] 申雅峰[1] 张磊[1] 

机构地区：[1]中航工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2013年第3期33-36,共4页Metrology & Measurement Technology

基　　金：工信部民用飞机科研项目

摘　　要：研究并实现了一种基于FPGA(现场可编程门阵列)的FBG(光纤布拉格光栅)光纤光栅传感系统,运用FPGA以及上位机软件完成了G11620-512DA InGaAs(铟砷化镓)线阵探测器驱动、探测器数据采集转化、高斯拟合处理、数据网口传输,实现了FBG光纤光栅解调。实验结果表明,该系统在FPGA的控制下能够正常工作,其输出数据符合FBG反射光谱理论分析。Study and implementation is done on a fiber Bragg grating system based on FPGA. FPGA and the software of upper computer are applied in the implementation of G11620 -512DA InGaAs detector driver, analogue data acquisition and digital conversion, Gauss fitting and Ethernet transfer. The experimental result shows that the system works well under the control of FPGA, and the output data accords with the theo-retical analysis of FBG reflective spectrum.

关 键 词：光纤光栅 INGAAS探测器 FPGA 解调系统 高斯拟合 

分 类 号：TN253[电子电信—物理电子学]