Next Article in Journal
Droplet Microfluidics for the Production of Microparticles and Nanoparticles
Next Article in Special Issue
A PZT Actuated Triple-Finger Gripper for Multi-Target Micromanipulation
Previous Article in Journal
Scalable Nanomanufacturing—A Review
Previous Article in Special Issue
MEMS Gyroscopes Based on Acoustic Sagnac Effect
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Micromachines 2017, 8(1), 21; doi:10.3390/mi8010021

Comparative Influences of Fluid and Shell on Modeled Ejection Performance of a Piezoelectric Micro-Jet

1
State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
2
Aero Engine Corporation of China (AECC), Harbin Dongan Engine Corporation Limited, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editors: Ulrich Schmid and Michael Schneider
Received: 21 November 2016 / Revised: 4 January 2017 / Accepted: 10 January 2017 / Published: 13 January 2017
(This article belongs to the Special Issue Piezoelectric MEMS)
View Full-Text   |   Download PDF [5443 KB, uploaded 13 January 2017]   |  

Abstract

The piezoelectric micro-jet, which can achieve the drop-on-demand requirement, is based on ink-jet technology and small droplets can be ejected out by precise control. The droplets are driven out of the nozzle by the acoustic pressure waves which are generated by the piezoelectric vibrator. The propagation processes of the acoustic pressure waves are affected by the acoustic properties of the fluid and the shell material of the micro-jet, as well as the excitations and the structure sizes. The influences of the fluid density and acoustic velocity in the fluid on the nozzle pressure and support reaction force of the vibrator are analyzed in this paper. The effects of the shell material on the ejection performance are studied as well. In order to improve the ejection performance of the micro-jet, for ejecting a given fluid, the recommended methods of selecting the shell material and adjusting excitations are provided based on the results, and the influences of the factors on working frequencies are obtained as well. View Full-Text
Keywords: piezoelectric micro-jet; ejection performance; modelling and simulation piezoelectric micro-jet; ejection performance; modelling and simulation
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Li, K.; Liu, J.-K.; Chen, W.-S.; Zhang, L. Comparative Influences of Fluid and Shell on Modeled Ejection Performance of a Piezoelectric Micro-Jet. Micromachines 2017, 8, 21.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top