基于高速CCD的激光熔池溫度檢測軟件開發(fā).pdf

1、蘇州大學碩士學位論文基于高速CCD的激光熔池溫度檢測軟件開發(fā)姓名：郁玲玲申請學位級別：碩士專業(yè)：機械制造及其自動化指導教師：石世宏20090401AbstractTodetectthetemperaturefieldoflaserweldpoolinlaserthree—dimensionalformingprocesscanreflectthemetallurgicalprocessofthepooltoe11Surenormalph

2、ysicalreactionprocesscarryoutsuccessfullyithasgreatsignificanceofthefinalformingresultsInviewofthestatusthatcurrentlasermoltenpooltemperaturedetectionWel“emainlyrestrictedtoinfraredthermometerinfTaredimagingsystemthispap

3、erdevelopedasetofhighspeedblackandwhiteCCDbasedlaserweldpooltemperaturefieldmonitoringsystemThroughconverttingthegraytotemperature，transformedthe伊ayscaleimageofthelaserpoolintotwodimensionaltemperaturedistributionmapsinp

4、seudocolormakingdetectionevenmoreintuitiveandcomprehensiveInthispaper，thepresentsituationofusingCCDtomonitortemperaturefieldwassummarized，mostofthetheoriesbasedoncolorimetrictestwhichwasnotsuitableforthemonochromecameraT

5、hereforenarrowbandfilterswereusedforsetingupthemeasurementtemperaturefieldtheoreticalmodelforblack—andwhiteCCDinthistopic，high—speedCCDwasusedtocollectblackandwhitepicturesoflasermoltenpool，tosetupmodelofthetemperaturefi

6、eldbasedonthetheoryofradiationandtocalibratethetemperaturefieldmodelthroughtheir出aredthermometerTakingCCD’SDKasadevelopmentplatform，combinationofmedianfilter，pseudocolordisplay，imagecroppingandotherdigitalimageprocessing

7、technologydesignedaspecialtemperaturemonitoringsoftwareoflasermoltenp001Afteraseriesoftestslikepointmeltingsingle—channelcladdingthesoftwarewasprovedtobeableteflectdynamiccharacteristicsofthelasermoltenpoolandtwo—dimensi

8、onaldistributionoftemperaturefieldinrealtimeIncylinderaccumulationtestinaccordancewitllthetemperaturechangesofthepoolshowedinsoftware，laserpowerwasadjustedaccordinglypreventedthebreakdownofprocessingofmeltoffFormingparts