基于fpga的动圈检波器参数测试仪的设计与实现

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1、万方数据ABSTRACTABSTRACTOil，asasourceofenergysubstances，ishailedasthebloodofmodemindustrialdevelopment．Butitshugedemandandlimitedstoragecapacitymakestheoilexplo．．rationbecomeveryimportant．Seismicexploration，whichiSthemostcomlTlOnmeanofoilexploration，notonlyhasahighresolutionandaccuracy,butals

2、ocanmeetthede．mandofthedeepexplorationdepth，whichiSunmatchedbyotherexplorationmethods．Thetransducerisakeyfeatureoftheseismicexploration，whichcancollectseismicsignalsandconveathemintoelectricalsignalsandtransmitthemtotheback-endforcollection，preservationandanalysis．Itisundeniablethatthetra

3、ditionalmoving．coilgcophonewithitsstability,reliabilityandlowcostadvantages，iswidelyusedinthefieldofseismicexplorationformorethan40years．Onlyafterconfirmationofthegeo-phonesIntheworkcarlthesmoothprogressoftheentireexplorationandthereliabilityoftheobtainedresultsbeensured．IfallerrorOCCurS，

4、itwillcausehugelosses．SOitlSnecessarythatallthegeophonesshouldbecheckedbeforeeveryexploration，whichwillensuretheoverallqualityofthecollection．Atpresent，intheforeignmarkets，theseriesofSMTgeophonetestersproducedbytheUnitedStatesI／0companywithhigherprecisionarewidelyused，buttheirhighcostandE

5、nglishoperationinterfacemakeUSuncomfortableandinconvenient．However，thegeophonetestersmadebyourcountryhaveavarietyoftypesandthemeasuringaccuracyvaries．Theyalwaystakethesingle—chipmmrocomputerasthecoreprocessonConsideringthestrongcapacityoflogiccontroloftheprogrammablelogicdeviceFPGA，thispa

6、perdesignedamoving-coilgeophonetesterwiththeFPGAasthecoreprocessor．Thispaperisdividedintothefollowingchapters：Thefirstchapteristheintroduction，mainlyintroducesthebackgroundoftheproject，includingthedevelopmentofmoving—coilgeophonetesters．Inaddition，theresearchcontentandthearrangementoftheo

7、verallstructureareintroduced．Thesecondchapterintroducesthemeasurementprincipleofexistingmethodsofonshoreseismicexploration，theparametersofthemoving—coilgeophoneandtheirtestprinciple．Throughthecomparisonofdifferenttestprinciples，theDCexcitationmethodcarlbethemostsuit