(,116028)(,201620)(,116028)SpectralAnalysisofVibrationMotor,,,,NILabVIEW,,。:,LabVIEW,,AbstractThispaperintroducesthestructureofmotorvibrationdataacquisitionsystemindetail,acceleratethemotortothedif-ferentspeedintheexperiment,suddenlycutoffthepower,toacquireemergencystopdataofmotor,thenusetheLabVIEWofNIcompanytocarryoutaspectrumanalysisofmotor'svibrationdataofsmoothoperationandemergencystop,analyz-ingthemechanicalreasonsandelectromagneticreasonswhichcausethevibrationofmotorinfrequency,comparingtosumupthevibrationcharacteristicsofthemotor.Keywords:acquireVibrationdata,LABVIEW,SpectrumAnalysis,vibrationcharacteristicsLabVIEW,。,,LabVIEW,。1,-。、、、,1。1,,,;NI9234,,USB,NI9401(),;,NIcDAQ-9172NI,D/ANI9265。,LabVIEW,0~20mA。,,。、12。1、22,,,,,,,。、、,0~4000Hz,12.8kHz。300rpm、600rpm、900rpm、1200rpm、1500rpm,PID,,,,,NILabVIEW,。48《》20112411(47)33。[1]OPCFoundation,OPCDataAccessAutomationInterfaceStandard,Version2.02,February4,1999[2]AlChisholm,ATechnicalOverviewoftheOPCDataAccessInterface,ISAEXPO98[3],,.OPC-COM[J].,2002(12):207-209[:2011.7.24]33.1,,。,。Fourier,,Fourier,,,Fourier。Fourierx(t)X(f),.x(t):X(f)=+∞-∞乙x(t)e-j2πftdtX(f),x(t),f。3.2,、;、,。(-∞,+∞),,,、,(-∞,+∞),,。、,、。2。2VI,16384,VI,hanning,,,mg,,,。FFT。3.33(3000Hz),(300rpm、600rpm、900rpm、1200rpm、1500rpm)。,250Hz800Hz,2400Hz2800Hz,,,150Hz,150Hz,。4,,,250Hz800Hz2400Hz2800Hz,150Hz。[1].[J].(),2007,9(1):41-44[2],.[J].,2001(1):42-44[3],,.[J].,2005,34(4):21-23[4].[J].,2005(3):28-34[5],.[J].,2007,23(1):4-7[:2011.7.18]3FFT3乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙乙49