Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Electrohydrodynamic Ink Jetting Monitoring based on Current Measurement

전류 측정을 이용한 수력학적 잉크젯 토출 모니터링

  • Kwon, Kye-Si (Department of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Lee, Dae-Yong (Department of Mechanical Engineering, Soonchunhyang Univ.)
  • 권계시 (순천향대학교 기계공학과) ;
  • 이대용 (순천향대학교 기계공학과)
  • Received : 2011.08.03
  • Accepted : 2011.12.11
  • Published : 2012.04.01
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Abstract

The method for spraying of liquid through an electrical filed has become a printing method since it can make very small droplet. To increase the reliability using the electro-hydrodynamic (EHD) jet printing, the jetting status needs to be monitored. Vision measurement techniques using high speed camera has been used to visualize the jet images. However, it requires image processing of a lot of images after image acquisitions. So, it is difficult to understand jet behavior such as jetting frequency, jet repeatability etc. In this work, a low cost electrical current measurement method was developed to measure electrical current from EHD jet printing. To verify the jetting monitoring capability of developed circuit, images from high speed camera were processed for comparison purpose.

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References

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