Labview外文翻译.docx
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Labview外文翻译.docx
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Labview外文翻译
本科毕业设计论文
外文原文及译文
系别:
电气与信息工程
专业:
测控技术与仪器
班级:
测控801学号:
08010028
学生姓名:
徐元富
指导老师:
鞠烽炽
2012年6月
外文文献
LabVIEW
LabVIEWisahighlyproductivegraphicalprogramminglanguageforbuildingdataacquisitionaninstrumentationsystems.WithLabVIEW,youquicklycreateuserinterfacesthatgiveyouinteractivecontrolofyoursoftwaresystem.Tospecifyyoursystemfunctionality,yousimplyassembleblockdiagrams-anaturaldesignnotationforscientistsandengineers.Tistightintegrationwithmeasurementhardwarefacilitatesrapiddevelopmentofdataacquisition,analysis,andpresentationsolutions.LabVIEWcontainspowerfulbuilt-inmeasurementanalysisandagraphicalcompilerforoptimumperformance.LabVIEWisavailableforWindows2000/NT/Me/9x,MacOS,Linux,SunSolaris,andHP-UX,andcomesinthreedifferentdevelopmentsystemoptions.
FasterDevelopment
LabVIEWacceleratesdevelopmentovertraditionalprogrammingby4to10times!
WiththemodularityandhierarchicalstructureofLabVIEW,youcanprototype,design,andmodifysystemsinashortamountoftime.YoucanalsoreuseLabVIEWcodeeasilyandquicklyinotherapplications.
BetterInvestment
UsingaLabVIEWsystem,eachuserhasaccesstoacompleteinstrumentationlaboratoryatlessthanthecostofasinglecommercialinstrument.Inaddition,userconfigurableLabVIEWsystemsareflexibleenoughtoadapttotechnologychanges,resultinginabetterbong-terminvestment.
OptimalPerformance
AllLabVIEWapplicationsexecuteatcompiledspeedforoptimalperformance.WiththeLabVIEWProfessionalDevelopmentSystemorApplicationBuilder,youcanbuildstand-aloneexecutablesorDLLsforsecuredistributionofyourcode.YoucanevencreatesharedlibrariesorDLLstocallLabVIEWcodefromotherprogramminglanguages.
OpenDevelopmentEnvironment
WiththeopendevelopmentenvironmentofLabVIEW,youcanconnecttootherapplicationsthroughActiveX,theWeb,DLLs,sharedlibraries,SQL(fordatabases),DataSocket,TCP/IP,andnumerousotherprotocols.UseLabVIEWtoquicklycreatenetworkedmeasurementandautomationsystemsthatintegratethelatesttechnologiesinWebpublishingandremotedatasharing.LabVIEWalsohasdriverlibrariesavailableforplug-indataacquisition,signalconditioning,GPIB,VXI,PXI,computer-basedinstruments,serialprotocols,imageacquisition,andmotioncontrol.InadditiontotheLabVIEWdevelopmentsystems,NationalInstrumentsoffersavarietyofadd-onmodulesandtoolsetsthatextendthefunctionalityofLabVIEW.Thisenablesyoutoquicklybuildcustomizable,robustmeasurementandautomationsystems.
LabVIEWDataloggingandSupervisoryControlModule
Forhighchannelcountanddistributedapplications,theLabVIEWDateloggingandSupervisoryControlModuleprovidesacompletesolution.ThismoduledeliversI/Omanagement,eventloggingandalarmmanagement,distributedlogging,historicalandreal-timetrending,built-insecurity,configurablenetworkingfeatures,OPCdeviceconnectivity,andover3,300built-ingraphics.
LabVIEWReal-Time
Forapplicationsthatrequirereal-timeperformance,NationalInstrumentsoffersLabVIEWReal-Time.LabVIEWReal-TimedownloadsstandardLabVIEWcodetoadedicatedhardwaretargetrunningareal-timeoperatingsystemindependentfromWindows.
LabVIEWVisionDevelopmentModule
TheLabVIEWVisionDevelopmentModuleisforscientists,automationengineers,andtechnicianswhoaredevelopingLabVIEWmachinevisionandscientificimagingapplications.TheLabVIEWVisionDevelopmentModuleincludesIMAQVision,alibraryofvisionfunctions,andIMAQVisionBuilder,aninteractiveenvironmentforvisionapplications.Unlikeanyothervisionproducts,IMAQVisionBuilderandIMAQVisionworktogethertosimplifyvisionsoftwaredevelopmentsothatyoucanapplyvisiontoyourmeasurementandautomationapplications.
CountlessApplications
LabVIEWapplicationsareimplementedinmanyindustriesworldwideincludingautomotive,telecommunications,aerospace,semiconductor,electronicdesignandproduction,processcontrol,biomedical,andmanyothers,Applicationscoverallphasesofproductdevelopmentfromresearchtodesigntoproductionandtoservice.ByleveragingLabVIEWthroughoutyourorganizationyoucansavetimeandmoneybysharinginformationandsoftware.
TestandMeasurement
LabVIEWhasbecomeanindustry-standarddevelopmenttoolfortestandmeasurementapplications.WithTestStand,LabVIEW-basedtestprograms,andtheindustry'slargestinstrumentdriverlibrary,youhaveasingle,consistentdevelopmentandexecutionenvironmentforyourentiresystem.
ProcessControlandFactoryAutomation
LabVIEWisusedinnumerousprocesscontrolandfactoryautomationapplications.ManyscientistsandengineerslooktoLabVIEWforthehighspeed,highchannelcountmeasurementandcontrolthatgraphicalprogrammingoffers.Forlarge,complexindustrialautomationandcontrolapplications,theLabVIEWDataloggingandSupervisoryControlModuleprovidesthesamegraphicalprogrammingasLabVIEW,butisdesignedspecificallyformonitoringlargenumbersofI/Opoints,communicatingwithindustrialcontrollersandnetworks,andprovidingPC-basedcontrol.
MachineMonitoringandControl
LabVIEWisidealformachinemonitoringandpredictivemaintenanceapplicationsthatneeddeterministiccontrol,vibrationanalysis,visionandimageprocessing,andmotioncontrol.WiththeLabVIEWplatformofproductsincludingLabVIEWReal-Timeforreal-timedeterministiccontrolandtheLabVIEWDataloggingandSupervisoryControlModule,scientistsandengineerscancreatepowerfulmachinemonitoringandcontrolapplicationsquicklyandaccurately.
ResearchandAnalysis
TheintegratedLabVIEWmeasurementanalysislibraryprovideseverythingyouneedinananalysispackage.ScientistsandresearchershaveusedLabVIEWtoanalyseandcomputerealresultsforbiomedical,aerospace,andenergyresearchapplications,andinnumerousotherindustries.Theavailablesignalgenerationandprocessing,digitalfiltering,windowing,curve-fitting,Forspecializedanalysis,suchasjointtime-frequencyanalysis,wavelet,andmodel-basedspectralanalysis,LabVIEWoffersthespeciallydesignedSignalProcessingToolset.TheSoundandVibrationToolsetoffersoctaveanalysis,averagedandnonaveragedfrequencyanalysis,transientanalysis,weightedfiltering,andsound-levelmeasurement,andmore.
DrawYourOwnSolution
WithLabVIEW,youbuildgraphicalprogramscalledvirtualinstruments(VIs)insteadofwritingtext-basedprograms.Youquicklycreatefrontpaneluserinterfacesthatgiveyoutheinteractivecontrolofyoursystem.Toaddfunctionalitytotheuserinterface,youintuitivelyassembleblockdiagrams-anaturaldesignnotationforengineersandscientists.
CreatetheFrontPanel
OnthefrontpanelofyourVI,youplacethecontrolsanddatadisplaysforyoursystembyselectingobjectsfromtheControlspalette,suchasnumericdisplays,meters,gauges,thermometers,LEDs,charts,andgraphs.WhenyoucompleteandrunyourVI,youusethefrontpaneltocontrolyoursystemwhetheryoumoveaslide,zoominonagraph,orenteravaluewiththekeyboard.
ConstructtheGraphicalBlockDiagram
ToprogramtheVI,youconstructtheblockdiagramwithoutworryingaboutthesyntacticaldetailsoftext-basedprogramminglanguages.Youdothisbyselectingobjects(icons)fromtheFunctionspaletteandconnectingthemtogetherwithwirestotransferdataamongblockdiagramobjects.Theseobjectsincludesimplearithmeticfunctions,advancedacquisitionandanalysisroutines,networkandfileI/Ooperations,andmore.
DataflowProgramming
LabVIEWusesapatenteddataflowprogrammingmodelthatfreesyoufromthelineararchitectureoftext-basedprogramminglanguages.BecausetheexecutionorderinLabVIEWisdeterminedbytheflowofdatabetweennodes,andnotbysequentiallinesoftext,youcancreateblockdiagramsthatexecutemultipleoperationsinparallel.Consequently,LabVIEWisamultitaskingsystemcapableofrunningmultipleexecutionthreadsandmultipleVIsinparallel.
ModularityandHierarchy
LabVIEWVIsaremodularindesign,soanyVIcanrunbyitselforaspartofanotherVI.YoucanevencreateiconsforyourownVIs,soyoucandesignahierarchyofVIsthatserveasapplicationbuildingblocks.Youcanmodify,interchange,andcombinethemwithotherVIstomeetyourchangingapplicationneeds.
GraphicalCompiler
Inmanyapplications,executionspeediscritical.LabVIEWistheonlygraphicalprogrammingsystemwithacompilerthatgeneratesoptimizedcodewithexecutionspeedscomparabletocompiledCprograms.YoucanevenusetheLabVIEWprofilertoanalyseandoptimizetime-criticaloperations.Consequently,youincreaseyourproductivitywithgraphicalprogrammingwithoutsacrificingexecutionspeed.
MeasurementsandMathematics
LabVIEWincludesavarietyofothermeasurementanalysistools.Examplesincludecurvefitting,signalgeneration,peakdetection,andprobabilityandstatistics.MeasurementanalysisfunctionscandeterminesignalcharacteristicssuchasDC/RMSlevels,totalharmonicdistortion(THD),impulseresponse,frequencyresponse,andcross-powerspectrum.LabVIEWuserscanalsodeploynumericaltoolsforsolvingdifferentialequations,optimization,rootfinding,andothermathematicalproblems.Inaddition,youcanextendthesebuilt-incapabilitiesbyenteringMATLABorHIQscriptsdirectlyinyourLabVIEWprograms.Forchartingandgraphing,youcanrelyonthebuilt-inLabVIEW2Dand3Dvisualizationtools.2DtoolsincludefeaturessuchasautoscalingXandYranges,reconfigurableattributes(point/linestyles,colors,andmore)andcurs
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