摘要
Anonlinepinholedetectorbasedonthephotoelectricinspectionofcold-rolledsteelstripswasintroduced.Pinholedetectionisimportanttoguaranteethequalityofcold-rolledsteelstrips.ThedetectorherewasdevelopedindependentlybyBaosteel,andisdesignedbasedontheprincipleofphotoelectrictransfer.Typically,aninspectionlightsourceisinstalledabovethesteelstriptobeinspected,andaphotoelectricreceiverisinstalledbeneaththesteelstrip.Thepinholedetectorconsistsofasuper-brightLEDlightsourceandaphotoelectricreceiver,whichiscomposedprimarilyofphotomultipliers.Thesuper-brightLEDlightsourceilluminatesthestripsurface,andthelightthatpermeatesfrompinholesisdetectedandamplifiedbyaphotoelectricreceiver.Thephotomultipliertransformsthedetectedlightintoanelectricalsignal,whichislaterrecognizedandclassifiedbyasignal-processingcircuitandcollectedbyadata-acquisitioncard.Thedetectorcanaccuratelytrackthestripedgeandshieldthestripedgefromoutsidelight.Asaresult,thissystemcandetectapinholeinthestripedgewithasmallblindzoneontheedge.Mostimportantly,thedetectorexhibitsgoodinspectionaccuracyandcanaccuratelydetectapinholewithadiameterof155m.
出版日期
2013年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
