Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2008.11a
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- Pages.1913-1916
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- 2008
An experimental study for characteristic change of Electrohydrodynamic jetting
전기수력학 프린팅의 분사 특성 변화에 대한 실험적연구
- Published : 2008.11.05
Abstract
Electrohydrodynamic (EHD) printing has gained significant interest after a direct writing with a resolution of a few tens nanometer was demonstrated using EHD. Basically, EHD use the electric field to generate droplet which is much smaller than nozzle diameter, so that high resolution printing is possible and the clogging problem can be alleviated as well. However, to adapt this technology to the real application, the fundamental studies are necessary to stabilize EHD jetting, to maximize jetting frequency, and to optimize the design of multi EHD nozzle, etc. In this study, by imaging EHD jetting using high speed camera and measuring the current, the effect of electric field intensity and back pressure on jetting frequency and jetting diameter were studied.