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分布式光纤光栅传感网络优化设计研究中文期刊:维普中文科技期刊数据库,任意字段=分布式and光纤光栅and传感网络30条记录分布式光纤光栅传感网络的复用解调技术李志全,汤敬,许明妍,赵彦涛(燕山大学仪器科学与工程系,河北秦皇岛066000)摘要:波长编码信号解调是实现光纤光栅多参量、多点分布式传感网络的核心技术之一。本文总结了光纤光栅传感信号解调的一般原理和技术难点,分类评述了常用解调方法的工作机理、特点和性能。同时,提出了一种新型的、用宽带光源和可调谐光滤波器(TOF)构成的可调谐窄带光源,对测量光栅阵列和参考光栅进行波长扫描,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技术。关键词:光纤光栅;解调;复用传感;波长扫描中图分类号:TN253文献标识码:A文献编号:1006.1231(2005)02.0053.06MultiplexDemodulationTechniquesforDistributedFiberBraggGratingSensingNetworkLIZhi—quan,TANGJing,XUMing—yan,ZHAOYan—tao(InstrumentScienceandEngineeringDepartment,YanshanUniversity,Qinhuangdao066000,China)Abstract:Wavelength··encodedsignaldemodulationisoneofthekeytechniquestoachievefibergratingdis··tributedsensingnetwork.Thispapersummarizedthegeneralprincipleandtechnicalproblemsindemodulationoffibergratingsensingsigna1.Theprincipleofoperation,characteristicsandfunctionsofcommonlyuseddemodulatingmethodsweredescribed.Meanwhile,anoveldemodulationtechniquewasproposed,thesensinggratingarrayandreferencegratingwerescannedbyatunablenarrow—bandlightsourcecomposingabroad—bandsourceandatunableopticalfilter.MultiplexedsensingsystemWasthendemodulatedbyvirtueofphoto-detectorandsignalprocessingsystemKeywords:fiberBragggrating;demodulation;multiplexedsensing;wavelengthscanning参考文献[2】OthonosA,KalliK.FiberBraggGratings-FundamentalsandApplicationsinTelecommu—nicationsandSensing[M].USA:ArtechHousePress,1999.类型:专著[3】GifordD,ChildersB,DuncanR,eta/.Struc—turalintegritymonitoringofaircraftpanelsusingadistributedBragggratingsensingtechnique[J].SmartStructuresandmaterialsConference,ProcSPIE,2003(inpress).类型:期刊[6】FerraroP,DeNataleG.OnthepossibleuseofopticalfiberBragggratingsasstrainsensorsforgeodynamicalmonitoring[J].OpticsandLasersinEngineering,2002,37:115~130.类型:期刊中文图书:超星数字图书馆,全文检索=光纤光栅and传感网络24条记录外文期刊:CASC计算机及应用科学数据库基本检索=distributedandfiberbragggratingandsensornetwork18条记录外文学位论文:PQDT博硕士论文全文库fiberbragggratingandsensornetwork8条记录

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