한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제10권1호
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  • Pages.9-14
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  • 2012
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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양극파형의 펄스폭 변화에 따른 피에조 구동형 잉크젯 노즐의 액적 토출 특성

Droplet Formation of a Piezoelectric Inkjet Nozzle According to the Variation of Pulse Widths in Bipolar Waveform

  • 최성훈 (서울과학기술대학교 에너지 환경대학원) ;
  • 성재용 (서울과학기술대학교 기계공학과) ;
  • 이명호 (서울과학기술대학교 기계공학과)
  • 투고 : 2011.12.20
  • 심사 : 2011.12.28
  • 발행 : 2012.04.30
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초록

In this study, a piezoelectric inkjet nozzle with a rectangular shaped channel has been developed, and the characteristics of droplet formation have been investigated according to the variation of pulse widths in bipolar waveform. The channel of the nozzle was fabricated transparently by a precision machining technique. A tantalum membrane which was attached to a piezoelectric material covers the channel. By applying two types of bipolar waveforms to the piezoelectric actuators, droplet formation through the nozzle was monitored by a CCD camera. For the variety of the first and second pulse widths in the bipolar waveforms, the regimes of single and double droplet formations are presented. The change of droplet velocity which depends on the pulse width and the type of waveform is also discussed.

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참고문헌

  1. Shin, P., Lee, S. and Sung, J., 2008, "On the Characteristics of the Droplet Formation from an Inkjet Nozzle Driven by a Piezoelectric Actuator", J. Korean Society Visualization, Vol. 6(1), pp. 47-52. https://doi.org/10.5407/JKSV.2008.6.1.047
  2. Dijksman, J. F., 1984, "Hydrodynamics of Small Tubular Pumps", J. Fluid Mech., Vol. 139, pp. 173-191. https://doi.org/10.1017/S0022112084000318
  3. Shield, T. W., Bogy, D. B. and Talke, F. E., 1987, "Drop Formation by DOD Ink-jet Nozzles a Comparison of Experiment and Numerical Simulation", IBM J. Res. Develop., Vol. 31, pp. 96-110. https://doi.org/10.1147/rd.311.0096
  4. Reis, N., Ainsley, C. and Derby, B., 2005, "Ink-jet Delivery of Particle Suspensions by Piezoelectric Droplet Ejectors", J. Appl. Phys., Vol. 97(1), pp. 3-6.
  5. Meinhart, C. D. and Zhang, H., 2000, "The Flow Structure Inside a Microfabricated Inkjet Printhead", Microelectromech. Syst., Vol. 9(1), pp. 67-75. https://doi.org/10.1109/84.825779
  6. Lee, B. L. and Kim, S.-I., 2010, "Piezo-driven Inkjet Printhead Monitoring System", J. Korean Sensors Society, Vol. 19(2), pp. 124-129. https://doi.org/10.5369/JSST.2010.19.2.124
  7. Szczech, J. B., Megaridis, C. M., Gamota, D. R. and Zhang, J., 2002, "Fine-line Conductor Manufacturing Using Drop-on-Demand PZT Printing Technology", IEEE Trans. Electron. Pack. Manuf., Vol. 25, pp. 26-33. https://doi.org/10.1109/TEPM.2002.1000480
  8. Jang, D., Kim, D. and Moon, J., 2009, "Influence of Fluid Physical Properties on Ink-jet Printability", Langmuir, Vol. 25, pp. 2629-2635. https://doi.org/10.1021/la900059m
  9. Chen, A. U. and Basaran, O. A., 2002, "A New Method for Significantly Reducing Drop Radius Without Reducing Nozzle Radius in Drop-on-Demand Drop Production", Phys. Fluids, Vol. 14, pp. 1-4. https://doi.org/10.1063/1.1421103
  10. Dong, H. Carr, W. W. and Morris, J. F., 2006, "An Experimental Study of Drop-on-Demand Drop Formation", Phys. Fluids, Vol. 18, pp. 1-16.
  11. Shin, P., Sung, J. and Lee, M. H., 2011, "Control of Droplet Formation for Low Viscosity Fluid by Double Waveforms Applied to a Piezoelectric Inkjet Nozzle", Microelectronics Reliability, Vol. 51, pp. 797-804. https://doi.org/10.1016/j.microrel.2010.11.017
  12. Gan, H. Y., Shan, X., Eriksson, T., Lok, B. K. and Lam, Y. C., 2009, "Reduction of Droplet Volume by Controlling Actuating Waveforms in Inkjet Printing for Micropattern Formation", J. Micromech. Microeng., Vol. 19, pp. 1-8