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Advances in Acoustics and Vibration
Volume 2017, Article ID 7861726, 10 pages
Review Article

On the Development of Focused Ultrasound Liquid Atomizers

Institute of Biomedical Technologies, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand

Correspondence should be addressed to Ahmed M. Al-Jumaily;

Received 15 September 2016; Accepted 22 January 2017; Published 6 February 2017

Academic Editor: Marc Asselineau

Copyright © 2017 Ahmed M. Al-Jumaily and Ata Meshkinzar. 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.


This paper reviews the evolution of focused ultrasonic transducers of various kinds for fluid atomization and vaporization. Ultrasonic transducers used for atomization purposes in biomedical, pharmaceutical, or industrial applications, such as surface acoustic wave (SAW) transducers, array of micromachined nozzles, and Fourier horn micromachined nozzles with or without a central channel, are all presented and compared. For simplicity of manufacturing and low cost, we focus on plates and curved and corrugated structures for biomedical humidification.