简介：Anovelmethodofmeasuringnon-uniformstrainalongafiberBragggrating(FBG)usingopticalfrequencydomainreflectometry(OFDR)isproposedandexperimentallydemonstrated.Thismethodcanovercometheproblemsoftraditionalnon-uniformstrainmeasurementmethodsforFBGs,i.e.,thelikelihoodofchirpingandmultiplepeakinginthespectrumwhenFBGissubjectedtoinhomogeneousstrainfields.WavelengthinterrogationisrealizedbyOFDRwithanarrow-line-widthtunablelaserastheopticalsource.Whennon-uniformstraindistributionsalongareasadjacenttostructuraldamagearemeasuredbythismethod,goodagreementisobtainedbetweenmeasurementsandtheoreticalsimulationresults.
客服QQ：30444492琼网文【2021】1550-113号
增值电信业务经营许可证：琼B2-20210322
出版物经营许可证：新出发龙华出字第(2021)009号
广播电视节目制作经营许可证：(琼)字第00779号
版权所有 ©2002-2024 期刊网 琼ICP备2021005105号
