한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

한국정밀공학회 (Korean Society for Precision Engineering)
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Automatic Inspection of Assembly Tolerances of Cathod Ray Electron Guns by Vision Probe

  • Park, H.G. (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Park, M.C. ;
  • Kim, S.W.
  • 발행 : 1997.10.01
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초록

This paper describes an automatic measurement method for the in-line inspection of assembly tolerances of cathod ray electron guns. The method uses an optical microscope with a CCD camera as a probe. An automatic gap recognition algorthm with digital image processing and a new software autofocus algorithm based on using an optimal edge detector have been developed to improve the measuring accuracy. An inspection system has been proposed and practically implemented for in-line inspection to a real factory automation line. The inspection system consists of a gap inspection part and an eyelet. Total time consumed for inspecting all measuring items is about 10 seconds and the repeatability is below .+-. 5 .mu. m

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