资源描述：
《基于labview的虚拟函数信号发生器的设计外文翻译学士学位论文.doc》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、中文1963字Labview-basedvirtualfunctionSignalGeneratorVMarozas,RJurkonis1IntroductionSince1986,theU.S.NI(NationalInstrument)companiestotheconceptofvirtualinstrumentation,alongwithcomputertechnologyandmeasurementtechnology,virtualinstrumenttechnologyhasalsobeendevelopedra
2、pidly.Virtualinstrumentmeans:useoftheexistingPC,withaspeciallydesignedinstrumenthardwareandproprietarysoftware,theformationofthebasicfunctionsofboththeordinaryinstrument,thereareusuallynospecialequipmentfeaturesofthenewinstrument.Comparedwiththetraditionalinstruments
3、ofitsfeaturesare:bettermeasurementaccuracyandrepeatability;measurementspeed;systemsetuptimeisshort;instrumentfunctiondefinedbytheuser;scalability;technicalupdatesandquick.Virtualinstrumentsoftwareasthecore,thesoftwarecompanyYouyiU.S.NILabviewvirtualinstrumentsoftware
4、developmentplatformmostcommonlyused.Labviewisagraphicalprogramminglanguage,mainlyusedtodevelopdataacquisition,instrumentcontrolanddataprocessingandanalysissoftware,andpowerful.Currently,thedevelopmentofsoftwareintheinternationaltest,measurementandcontrolindustry,popu
5、lar,measurementandcontrolareasinthecountryhasalsobeenwidelyused.FunctionGeneratorisascientificresearchandengineeringdesigninawidelyusedgeneral-purposeequipment.Thefollowingfunctionsignalgeneratorwithavirtualdesignanddevelopmentofspecificdescriptionisbasedongraphicalp
6、rogramminglanguageLabviewvirtualinstrumentprogrammingandimplementationoftechnology.102virtualfunctionsignalgeneratorstructureandcomposition2.1VirtualFunctionGeneratorfrontpanelThisvirtualfunctionsignalgeneratormainlyconsistsofaPCIbus,multi-functiondataacquisitioncard
7、andappropriatesoftware.TheminstalledonaPCrunningWindows95/98/2000/NTthemachine,shallconstituteapowerfulfunctionofsignalgenerator.ThedesignofthevirtualfunctionsignalgeneratorreferencesignalgeneratorSG1645powerfunctions,frontpanelshowninFigure1.Figure1virtualfunctionsi
8、gnalgeneratorfrontpanelThefunctiongenerator'sfrontpanelfunctionofthefollowingcomponents:instrumentcontrolbutton,theoutputfrequencyc
