光波導(dǎo)器件封裝裝備中的機(jī)器視覺(jué)系統(tǒng)研究.pdf

1、中南大學(xué)碩士學(xué)位論文光波導(dǎo)器件封裝裝備中的機(jī)器視覺(jué)系統(tǒng)研究姓名：梁世偉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：機(jī)械電子工程指導(dǎo)教師：段吉安20090501ABSTRACTPLC(PlanarLightwaveCircuits)hasagreatviewofapplicationincommunicationmarket，butthedifficultbondinglimitsitsapplicationAutomatedPLCBondingStatio

2、nintegratesfunctionsofalignment，dispensersolidifymeasurementandSOon，needshighprecisionandautomatizationandhasacomplexstructureAutomatedPLCBondingStationisahightechequipment，whichisanadvancedoptoelectronictechnologyandequ

3、ipmentrepresentativeMachinevisionisneededtoalignchipsinAutomatedPLCBondingStation，whichorientatesonchips’shapes，hasalowprecisionandisrestrictedbyshape’SprecisionThispaperoffersanewplanwhichisorientatesonchannelsinsidethe

4、chips，cangetagreaterprecisionTheresearchofthispaperisgeneralizedasfollowsFirstlythispaperofferanewplanwhichisorientatesonchannelsinsidethechipsTheproperlightingtypeandlamp—housearedesignedforthecharacteristicsofchipsucha

5、stransparentstructure，channelsinsidechip，thelowchangerefractiveindexofthechannelsandprotectivecoreAfterthcanalysisandexperimentsofdifferentlightingtypes，redparallelbacklightilluminationisapprovedamethodtoobservechannelso

6、fPLCSecondlytherelevantstructureofmachine—visionsystemisdesignedbasedOilcompletionoflightingssystem，fortheproblemofrecognitionofchannels’positionTheexperimentshowsthatthechannelsofPLCareobservedclearlybymachinevisionsyst

7、em，andtheflowofcoarsealignmentisprogrammedThirdlyrecognitionofchannels’positionisachievedbydigitalimageprocessingtheoryInordertoenhancethechannels’contrast，pretreatmentarithmeticisresearchedbasedoncharactersofPLCimages，s

8、uchaslowcontrast，blurryedgesRecognitionofchannels’positioniscarriedoutbasedonHexSightsoftwareThismachine—visionsystemisprovedtoachieveprecisionofsub—pixelandmeetprecisionrequirementbyexperimentsThismachine。visionsystemca