光纤光栅传感器的解调方法的研究  

study on the demodulation of the fiber bragg grating sensing system

作　　者：胡勇勤[1] 

机构地区：[1]武汉理工大学光纤传感技术国家重点工业性试验基地,湖北武汉430070

出　　处：《自动化与仪器仪表》2004年第5期11-14,共4页Automation & Instrumentation

摘　　要：本文论述了光纤光栅传感系统的解调方法。首先本文论述了光栅传感系统的解调趋势,然后理论分析了光纤光栅的传感原理。接着从3个方面介绍了传感系统的信号解调技术,即滤波溶调技术,可调窄带解调技术和色散解调技术,并对以上各种解调技术的优点和缺点进行了论述,并提出一较有前景的解调方法。In this paper, the method to detect the Bragg waveleng shift of fiber Bragg'grating(FBG)was proposed.Firstly discuss the trend of the demodulations and then the principle of sensing in FBG, and thirdly Various means for fiber Bragg-gratlng sensor wavelength-shift demodulation from three aspects Which are fiter,interference tunable narrow band light source and chromatic dispersiondenmodulation techniques are mainly described. Their advantages and weaknesses have been analyzed and discussed. And a promising method of demodulation was presented.

关 键 词：解调技术 光纤光栅传感器 解调方法 信号解调 色散 传感系统 窄带 传感原理 滤波 优点 

分 类 号：TH165[机械工程—机械制造及自动化] TP212[自动化与计算机技术—检测技术与自动化装置]