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1、2010SecondInternationalConferenceonCommunicationSystems,NetworksandApplicationsThePackagingTechniqueaboutFBGTemperatureSensorSONGLi-JunYUGuo-QingCollegeofInformationScienceEngineeringCollegeofInformationScienceEngineeringHebeiUniversityofScienceandTechnologyHebeiUni
2、versityofScienceandTechnologyShijiazhuangHebei050018,ChinaShijiazhuangHebei050018,Chinae-mail:ferretsong@sohu.come-mail:hbkdygq@163.comAbstract-ThefiberBragggratingtemperaturesensorwithtechnologiesarenamedsensitivitytechnology.Iproposeaitsuniqueadvantageshasbetakenm
3、oreattentions,butthelownewtypeofBragggratingpackagingtechniqueaimedtosensitivitylimiteditsapplication.Anewpackagingtechniqueimprovethefibergratingtemperature-sensitivefactorandaboutFBGtemperaturesensorisintroduced.Thetechniquewilleliminatethestressandpressureofthecr
4、oss-effects,sotheenhancetheFBGtemperaturesensitivecoefficientandeliminatemeasurementaccuracyandlinearityofFBGtemperaturethecrossingeffectofstressandpressureandimprovethesensorsareimproved.accuracyandlinearity.Throughexperimentsonthenakedfiberandpackagedfibercomparin
5、gthetemperaturecharacterandII.THECHARACTERISTICSOFFBGTEMPERATUREstressinginfluence,theresultsshowedthatthismethodcannotSENSORonlyeffectivelyincreasethesensitivityoffibergrating,butalsoeliminatetheeffectstressandgreatlyimprovedtheabilityofWavelengthofthefiberbraggGra
6、ting:fibergrating.AB=2noffA(I)Keywords-fiberBragggrating,packagingtechnique,IntheaboveformulaABiscentralwavelengthofthegrating,sensitivity,temperaturesensor.anditsunitisnm;neffiseffectiverefractiveindex,anditsdimensionisI;Aisperiodofgrating,anditsunitisnm;WhenI.INTR
7、ODUCTIONthelightwavetransmitthroughthefiberbragggrating,thelightwavewhichmeetthebraggconditionswillbereflected.ThatisFiberBragggrating(FBG)sensorisoneoffiberthebasicworkingprincipleofthefiberbagggrating.passive-deviceswhichhaveprogressedrapidly.Ithasledtoanewtechnol
8、ogyrevolutioninfibertechnologyandFortheprototype-packagedtemperaturesensor,thecorrelationaldomain.FBGtemperaturesensorhassomemerit,tempera
