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1、OverviewofFiberOpticSensorsAbstract:Withthedevelopmentofopticalsensortechnology,fiberopticsensorhastheadvantagesofresistancetoelectromagneticinterference,corrosion,resistance,excellentinsulation,widemeasuringrange,easyformultiplexing,solvingproblemsthatothe
2、rsensorscan'tsolve,etc,thesesensorsasoneofthefaster-developingtechnologyarewidelyappliedinthefieldofcivilengineering,aerospace,electricpower,medicaltreatment,shipbuildingindustry,andsoon.Inthispaper,westudythebasicknowledgeonopticalsensortechnology.Keywords
3、:fiberoptic;fiberBragggrating;opticalfibersensor1.IntroductionOpticalfibersensorisdevelopedattheendof70sasanewtypeofsensor,ithasnotaffectedbyelectromagneticfieldeffect,inessencesafetyexplosion-proof,smallsize,corrosionresistance,theadvantagesofhighsensitivi
4、ty.Usedintraditionalsensorisdifficulttosetfootintheextremeenvironment,sointhemilitary,aviation,biologicalmedicine,buildingconstructionfieldispopular.Sotoopticalfibersensorresearchhasveryimportantpracticalsignificance.Sensingtechnologyispopularinrecentyears,
5、theapplicationofthetechnologyinthesensitive,accuratesensor,strongadaptability,cabinetandwisdomofthedirectionofdevelopment.Inthisprocess,opticalfibersensorsthesensortothenewmembersofthefamilyisextremelypopular.Opticalfiberhasmanyexcellentproperties,suchas:th
6、eelectromagneticinterferenceandatomicradiationperformance,diameterisfine,softandlightweightofmechanicalproperties,insulation,withoutinductionelectricalproperties,waterresistant,hightemperatureresistantandcorrosionresistanceofthechemicalproperties,itcannotre
7、achpeopleplaces(suchashigh),orharmfultothepersonofthearea(suchasnucleararea),playstheroleoftherefreshing,andstillcantranscendboundaries,receivingofphysiologicalthesensesofnotfeelingoutsideinformation.Opticalfibersensorisanewtechnologyinrecentyears,canbeused
8、tomeasurephysicalquantities,suchassoundfield,electricfield,pressure,temperature,angularvelocity,acceleration,etc,butalsocancompletetheexistingmeasuringtechnologydifficulttocompletemeasuringtask.Inthena
