摘要
本文阐述了基于光纤光栅的边缘滤波动态解调技术的研究。初步实验表明:解调仪适合传感FBG存在大幅度静态波长变化时,对微幅度动态波长变化的检测,动态波长检测范围分辨率为0.007pm/!Hz。上电时,可调滤波器具有对中心波长为1295.5nm～1307.5nm范围光纤光栅自动跟踪能力。
We report Edge Filter Dynamic Demodulation Method Based on Filter Bragg Grating. Initial experiments demonstrated this interrogation technique is suitable for the micro-amplitude dynamic wavelength detection existing in the large static wavelength change of the FBG, the dynamic wavelength detection resolution is 0.007pm/√Hz, The tunable optical filter can track the FBG center wavelength between 1295.5nm-1307.5nm when the system powered on.
出处
《微计算机信息》
北大核心
2006年第04S期201-203,共3页
Control & Automation
基金
国家"973"重大基础研究资助项目(513601ZT2)
关键词
光纤传感器
光纤光栅
动态应变测量
边缘滤波
Optical fiber sensors, Fiber Bragg grating, Dynamic strain measurements
