Compact SAW aerosol generator
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- 作者：A. Winkler ; S. Harazim ; D.J. Collins ; R. Brünig ; H. Schmidt…
- 关键词：Surface acoustic wave ; SAW ; Atomization ; Aerosol source ; Miniaturization ; Mass scale production ; Microchannel ; Fluid supply
- 刊名：Biomedical Microdevices
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：19
- 期：1
- 全文大小：6182KB
- 刊物类别：Engineering
- 刊物主题：Biomedical Engineering; Biological and Medical Physics, Biophysics; Nanotechnology; Engineering Fluid Dynamics;
- 出版者：Springer US
- ISSN：1572-8781
- 卷排序：19
文摘
In this work, we discuss and demonstrate the principle features of surface acoustic wave (SAW) aerosol generation, based on the properties of the fluid supply, the acoustic wave field and the acoustowetting phenomena. Furthermore, we demonstrate a compact SAW-based aerosol generator amenable to mass production fabricated using simple techniques including photolithography, computerized numerical control (CNC) milling and printed circuit board (PCB) manufacturing. Using this device, we present comprehensive experimental results exploring the complexity of the acoustic atomization process and the influence of fluid supply position and geometry, SAW power and fluid flow rate on the device functionality. These factors in turn influence the droplet size distribution, measured here, that is important for applications including liquid chromatography, pulmonary therapies, thin film deposition and olfactory displays.