基于NIPXI-5105的多通道数据采集系统的设计-论文.pdf

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1、V0I．6No．1，Mar．2015JournalofMeasurementScienceandInstrumentation7Designofmulti-。channeldataacquisitionsystembasedonLabVIEWandNIPXI-5105XIEYa-ni，ZHANGZhi-jie(KeyLaboratoryofInstrumentationScience&DynamicMeasurement(NorthUniversityofChina)．MinistryofEducation，Taiyuan030051，

2、China)Abstract：AdataacquisitionsystembasedonLabVIEWandNIPXI-5105ispresentedformulti—channeldataacquisition．Itcanrealizethefunctionsofparametersetting，dataacquisitionandstorage，waveforrndisplayanddataanalysisusingLabVIEWandNI-SCOPEdevicedriver．Theadvantagesofthesystemaret

3、hatthesettingisconvenient，theoperationiseasy，theinterfaceisfriendlyandthefunctionsarepractica1．Theexperimentresultsshowthatthesystemhasgoodstabilityandhighreliabilityandisapowerfultoolformulti-channeldataacquisitionKeywords：LabVIEW；multi-channeldataacquisition；PXI-5105CL

4、Dnumber：TP274Documentcode：AArticleID：1674—8O42(2O15)O1—0007—06doi：10．3969／j．issn．1674—8042．2015．01．002brary(DLL)，codeinterfacenode(CIN)，ActiveX，0IntroductionMatlab，etc．，whichcontributestoeasyhybridpro—grammingwithotherhigh-levellanguages[。一．Be—Thetraditionaldataacquisiti

5、onsystemgenerallysides。italsoprovidesalotofspecialtoolsanddriv—consistsofhardwareacquisitioncircuitsandsingleers，suchasNI-SCOPE，bymeansofwhich，almostchipmicrocomputer．ButtherearesomedeficienciesanyhardwareinterfacecanbeconnectedwithLab—inthedataacquisitionsystembasedonsi

6、nglechipVIEW．Especially，itissuitableforhigh—speed，microcomputer，suchassmallstoragecapacity，slowmass-storageandmulti—channeldataacquisition．operation，longdevelopmentcycleandpoorextensi—bility．Therefore，itisverydifficulttomeetthere—1Systemdesignideaquirementsofmodernengine

7、eringapplicationsinhigh-speed，mass—storageandmulti—channelacquisi—Thedesignedmulti—channe1dataacquisitionsystemtion．Withtherapiddevelopmentofcomputer，ac—consistsofsensors，signalconditioningdeviceandNIquisitioncircuitsandnetworktechnologies，virtualdataacquisitiondevice，as

8、showninFig．1．Thedatainstrumenttechnologyiswidelyusedinthefieldsofacquisitiondeviceiscomposedofsixparts：