Experimental studies of meniscus dynamic behaviors in a squeeze-mode piezoelectric inkjet printhead

Tzong Shyng Leu, Jan Hua Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Meniscus dynamic behaviors, as well as its optimal waveform of driving signal, in a squeeze mode piezoelectric inkjet device are studied in this paper. To use the squeeze mode piezoelectric inkjet device as a drop-on-demand dispenser, the driving signal is trapezium waveform. The parameters in a trapezium waveform of the driving signal include rise time (trise), dwelling time (tdwell), fall time (tfall) and voltage (Vp). Among these parameters, the most important parameter of driving signal is the dwelling time. To demonstrate the importance of dwelling time, a LED signal synchronized with the driving signal is used to visualize the instantaneous meniscus shape under a microscope. Experimental results show the meniscus oscillation at beginning and droplet ejection at the later phase. It is found there is an optimal dwelling time. At the optimal dwelling time, droplet ejects in a minimum time and its ejection velocity reaches the maximum. The optimal dwelling time can be further identified it relates to a pressure wave oscillation within the device. The optimal dwelling time can be approximated as the length (L) of the piezoelectric inkjet device divide by the speed of sound (c) in the dispensed fluid.

Original languageEnglish
Title of host publicationAdvanced Manufacture
Subtitle of host publicationFocusing on New and Emerging Technologies - Selected, peer Reviewed Papers from the 2007 International Conference on Advanced Manufacture
PublisherTrans Tech Publications Ltd
Pages155-162
Number of pages8
ISBN (Electronic)978-0-87849-360-9
Publication statusPublished - 2008 Jan 1
Event2007 SME International Conference on Advanced Manufacture, SME ICAM 2007 - Tainan, Taiwan
Duration: 2008 Nov 262008 Nov 28

Publication series

NameMaterials Science Forum
Volume594
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other2007 SME International Conference on Advanced Manufacture, SME ICAM 2007
CountryTaiwan
CityTainan
Period08-11-2608-11-28

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Experimental studies of meniscus dynamic behaviors in a squeeze-mode piezoelectric inkjet printhead'. Together they form a unique fingerprint.

  • Cite this

    Leu, T. S., & Lin, J. H. (2008). Experimental studies of meniscus dynamic behaviors in a squeeze-mode piezoelectric inkjet printhead. In Advanced Manufacture: Focusing on New and Emerging Technologies - Selected, peer Reviewed Papers from the 2007 International Conference on Advanced Manufacture (pp. 155-162). (Materials Science Forum; Vol. 594). Trans Tech Publications Ltd.