资源描述：
《Fiber Optic Current Sensor for Aerospace application》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、NASATechnicalMemorandum103152AFiber-OpticCurrentSensorforAerospaceApplicationsRichardL.PattersonLewisResearchCenterCleveland,OhioA.H.Rose,D.Tang,andG.W.DayNationalInstituteofStandardsandTechnologyBoulder,ColoradoPreparedforthe25thIntersocietyEnergyConversionEngineeringConfer
2、encecosponsoredbytheAIChE,SAE,ACS,AIAA,ASME,andIEEEReno,Nevada,August12-17,1990""f",qAFIBER-OPTICCURRENTSENSORFORAEROSPACEAPPLICATIONSRichardL.PattersonNASALewisResearchCenterCleveland,Ohio44135A.H.Rose,D.TangandG.W.DayNationalInstituteofStandardsandTechnologyBoulder,Colorad
3、o80303ABSTRACTlaunchvehicles,orbitingspacecraft,andfortraveltoMars.ItmaybevaluablefornewmotorcontrollersArobust,accurate,broad-band,alternatingcurrentwhichusehighfrequencypower.Additionally,itcansensorusingfiberopticsisbeingdevelopedforspaceprovideanisolatedmethodtomeasurecu
4、rrentinhighapplicationsatpowerfrequenciesashighas20kHz.Itvoltage60Hzterrestrialpowersystems,anditcancanalsobeusedinlowandhighvoltage60HzenableEMIimmunecurrentmeasurementin400Hzterrestrialpowersystemsandin400Hzaircraftsystems.aircraftsystems(especiallyimportantwhennewItisintr
5、insicallyEMIimmuneandhastheaddedbenefitcompositestructureswillreducetheamountofEMIofexcellentisolation.shieldingthatmetalwingsandstructuresprovided).ThesensorusestheFaradayeffectinopticalfiberInthispaper,wediscussthefiber-opticcurrent¢¢'3andstandardpolarimetricmeasurementsto
6、sensesensortechnologythathasbeendeveloped,andwer-.4electricalcurrent.Theprimarycomponentofthesensorrelatetheresultsofaccuracyandenvironmenttests.t._Iisaspeciallytreatedcoilofsingle-modeopticalfiber,throughwhichthecurrentcarryingconductorpasses.Improvedprecisionisaccomplished
7、bytemperature2.SENSORTECHNOLOGYcompensationbymeansofsignalsfromanovelfiber-optictemperaturesensorembeddedinthesensinghead.FaradayEffectThispaperreportsonthetechnologycontainedinAschematicdiagramofthesensorisshowninthesensorandalsorelatestheresultsofprecisiontestsFigure1.Thes
8、ensorusestheFaradayeffectinasingle-conductedatvarioustemperatureswithinthew
