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20118308JournalofMianyangNormalUniversityAug．2011Vol．30No．82011-06-082011-07-021974－。MATLAB621000MATLAB。、。MATLABO436.1TP391.9A1672-612x201108-0042-04。、。Mathworks1984———“MATLAB”、。、“MATLAB”12。1131Fig．1InterferencepatternS1S2E01=A01cosωt+φ01E02=A02cosωt+φ02{1－1A01A02S1S2φ01φ02S1S2PPE01=A01cosωt－r1v1+φ01E02=A02cosωt－r2v2+φ02{1－2r1=s1Pr2=s2Pv1v2r1r2PΔφ=ω1－ω2t+φ01－φ02－2πr1λ1－r2λ2=φ01－φ02=0{1－3Ⅰω1－ω2=0。Ⅱφ01－φ02=。Ⅲ1cosθ≠0。1－3Δφ=ωr2v2－r1v1+φ01－φ02=2πλn2r2－n1rn+φ01－φ021－4ω=2πv=2πc/λλn1=c/v1n2=c/v2r1r2cφ01－φ02=0n1=n2=n=1Δφ=2πλr2－r11－51r1=y－d2+L槡2r2=y+d2+L槡21－6αB=4B0cos2α/2。2MATLAB2452Fig．2Flowchartofsimulationprocess3MATLAB400nm－760nm。r1r2fori=1Ny·34·8MATLABr1=sqrtysi－kuandu/2．^2+juli^2r2=sqrtysi+kuandu/2．^2+juli^2Phi=2*pi*r2－r1/bochangBi=4*cosPhi/2．^2endclffiguregcfNCLevels=255Br=B/4．0*NCLevelssubplot121imagexsysBrcolormapgrayNCLevels4λ、d、L3。3MATLABFig．3InterferenceprinciplesimulationinMATLAB5“MATLAB”。。1．MATLAB7．0M．200631－307．2TheMathworks．Inc．EB/OL．http//．mathworks．com/support/@1994－2007．3．M．198449－125．4．M．19971－12．5StephenChapman．MATLABM．20032－96．6．J．200818531－33．7FS．3M．2000．8．J．2005183106－108．9．J．200320158－611．10．MATLABJ．200727117－20．·44·30ComputerSimulationwithInterferenceofYong＇sBi－slitBasedonMATLABCHENYanHESongSchoolofphysicsMianyangNormalUniversityMianyangSichuan621000AbstractThispaperistointroducetheprincipleofinterferingexperimentswithYong＇sbi－slitandhowtosimulatetheexperimentsbyusingtheprogrammingskillofMATLAB．ThisexperimentofsimulationissimpleandintuitiveandthesimulationpatternsbeinginterferedbyYong＇sbi－slitcanbeeasilyobtainedunderdifferentlengthsofopticalwaveswidthsofslitanddistancesofscreen．Itcanbeabasisfortheoreticalteachingofopticsandexperiments．KeywordsMATLABvisualizationsimulationYong＇sbi－slitinterference371．M．20094．2．MSP430M．2007．3．J．200712114－116．4．M．20076．5．M．20077．6．51M．2003．7．M．1999．8．M．20011．9CrayCSwinhoeCFMyinletal．TargetcontrolledinfusionofketamineasanalgessiaforTIVAwithpropofol．Can．JAnesth199940957．10R．JHiggens．ElectronicsandAnalogIntegratedCircuitsM．N．J．Prentice－HallInc2001．OnDesignofWirelessChargerBasedonMSP430MicrocontrollerZHOUGong－ming1ZHOUChen－chen21．InstituteofPhysics＆electronicengineeringMianyangNormalUniversityMianyangSichuan6210002．GraduateSchoolofMechanicalElectronEngineeringDepartmentEngineeringInstituteofShantouUniversityShantouGuangdong515000AbstractThispaperistointroducethedesignofawirelesschargerbyusingMSP430F2274ultra－lowpow-ermicrocontrollerasthemonitoringcontrolcenterofenergytransferapplyingswitchestocontrolthechargingspeedandthischargerhasthefunctionofrapidchargingandnormalchargingitwillbeautomaticallystoppedafterbeingfullycharged．ACorDCpowersuppliesarebothOKwiththepriorityofACandautomaticswitchoverofACandDCandusingthelow－powerOCM126864－9LCDasthedisplayofvoltageandchargingtime．Thisdesignsystemhasadvantagesofwirelesscharginggoodenergytransfereffectbeingeasytocarrylowcostnowiringanditwillhaveabroadprospectofapplication．KeywordsMSP430microcontrollerwirelesschargerdesign·54·8MATLAB