Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Visualization of Electro-hydrodynamic Ink Jetting using CCD Camera

CCD 카메라를 사용한 전기수력학적 잉크젯 토출 현상 가시화

  • 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 : 2011.04.20
  • Accepted : 2011.11.12
  • Published : 2012.03.01
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Abstract

The method for spraying of liquids through an electrical field has become a printing method since it can make very small droplet. For electro-hydrodynamic jet printing to become a reliable jetting tool, the jetting performance should be characterized with respect to various jetting conditions. To optimize jetting conditions, the jetting behavior should be measured. In this study, we present a visualization techniques to measure jetting behavior from electro-hydrodynamic (EHD) inkjet head. Unlike most previous method, we use the CCD camera to measure the jetting behavior. For this purpose, LED light is synchronized with jetting signal and sequential image was obtained by adjusting the delay time of the LED light. Finally, merits and demerits of using CCD camera were discussed to measure jetting image from EHD inkjet head.

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References

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