제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Eddy Current System For Coating Thickness Measurement

  • Rerkratn, Apinai (Electronics Research Center, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang) ;
  • Pulkham, Jirayut (Department of Electronics, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang) ;
  • Chitsakul, Kitiphol (Department of Electronics, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang) ;
  • Sangworasil, Manas (Department of Electronics, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang) ;
  • Keawpoonsuk, Anucha (Department of Control Engineering, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang) ;
  • Songsataya, Kiettiwan (Department of Control Engineering, Faculty of Engineering King Mongkut’s Institute of Technology Ladkrabang)
  • Published : 2005.06.02
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Abstract

Coating thickness is an important variable that plays a role in product quality, process control, and cost control. Measurement of film thickness can be done with many different instruments. In this paper, we introduce the new eddy current system for measure the thickness of nonconductive coatings on nonferrous metal substrates. The experimental results are shown that the proposed system is able to measure thickness of plastic film coating on aluminum plates in the range of 0 to 1000 microns with satisfy sensitivities, linearity, resolution and stability of the system.

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