Journal article
Compact SAW aerosol generator
A Winkler, S Harazim, DJ Collins, R Brünig, H Schmidt, SB Menzel
Biomedical Microdevices | SPRINGER | Published : 2017
Open access
Abstract
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 functi..
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Awarded by Deutsche Forschungsgemeinschaft
Funding Acknowledgements
This work was funded by the German Research Foundation (DFG Grant WI 4140/2-1) and the Federal Ministry of Education and Research (BMBF InnoProfile-Transfer 03IPT610A). The authors wish to gratefully thank S. Nestler (IFW Dresden) for her kind assistance with SU-8 lithography, P. Bergelt (TU Dresden) for his assistance with Laser diffraction measurements, the IFW workshop for production of the demonstrator and Ofer Manor (Technion, Israel) for helpful discussions.