光纖電場(chǎng)傳感技術(shù)研究.pdf

1、華中科技大學(xué)碩士學(xué)位論文光纖電場(chǎng)傳感技術(shù)研究姓名：曾小軍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：光學(xué)工程指導(dǎo)教師：陳海清2001.12.28華中科技大學(xué)碩士學(xué)位論文Studyonthetechniqueofoptic—fiberelectricfieldsensorABSTRACTn圮studyonopticfiberelectric—fieldsensorisabranchofthemeasuretechniqueonelectromagneticc

2、ompatibilitor(EMC)whichisveryimportanttoenvironmentalprotectionandimprovingqualityofelectronicproductTheopticfiberelectricfieldsensor(OES、developedbyUSisusedinthetestofEMCaboutmilitaryelectronicequipmentandscatofwarIt’St

3、hebasalresearchinmeasuringandtestingtechniqueofEMCThcsensorsystemconsistsofopticalsensingheadandsignalprocessingcircuitTheopticalsensingheadbasedonPockelseffectisthecoreofsensorsystemwhichCanm哪urcelectricfield，butdon’tdi

4、sturbitAccordingtolinearelectroopticeffecttheoryweselectedelectroopticcrystalcarefullydesignedsensingheadwithspecialstructure，anddevelopedanelectricfieldsensorButtheopticfibetelectricfieldsensoriSnotenoughpracticalbecaus

5、eofsomeshortageinprocessingtechnologyandskillnlemainproblemsinclude：themeasurementprecisionreducebytheeffectofinherentbirefringenceintheopticsensingelement；temperaturevariationofthesensorcauselargedeviationwhenmeasuringA

6、discussiontotheissueofopticalsensorisanalyzedandexploredAndawaytosolutetheproblemsisdescribedinthisthemenlispaperconsistsofsevensectionsChapter1introducesthesourceandsignifiCanCCofresearchprojectinternationalandnationals

7、tudyingstate，appliedprospectandsensingtheoryofOESAtestingtheoryisselectedandatheorymodeisdesignedinChapter2Chapter3discussestheactualdesignofsensingheadrealizestemperatureeffectcompensation，andselectssuitablePockelscryst

8、alandothersopticcomponentstobuildaactualsensingsystemChapter4describesthesignalprocessingsectionofthesensor，includingpre—amplifierdesignandflowdiagramofdataacquisitionandprocessingChapter5in打oducestheexperimentresultandt

9、heperformanceanalysisofthesystem，furthermore，asuggestionandimprovingforsubsequentstudyingisgivenAtlast，thesummaryofourworkiSgiveninchapter6Keywords：OES，temperatureeffectcompensation，Pockelseffect，LiNb03crystal———————————