Slowness curve surface acoustic wave transducers for optimized acoustic streaming

Slowness Surface Wave Surface

ZnO film thickness effect on surface acoustic wave modes and acoustic streaming

and acoustic streaming X. Y. Du, Y. Q. Fu, S. C. Tan, J. K. Luo, A. J. Flewitt, W. I. Milne, D. S. Lee, N. M. Park, J. Park, Y. J. Choi, S. H. Kim, and S. Maeng Centre for Advanced Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Ave, CB3 0FA, United Kingdom Electronics and Telecommunications Research institute (ETRI), 161 Gajeong-dong, Yuseong-gu, Dae...

TiO2 based surface acoustic wave gas sensor with modified electrode dimensions for enhanced H2 sensing application

The design and optimization of nanostructure-based surface acoustic wave (SAW) gas sensor is analyzed based on TiO2 sensing layer and modified electrode dimensions. The sensitivity of the gas sensor depends upon the type of sensing layer used and active surface area obtained by varying the aspect ratio. The performance of the sensor is observed from 0.1ppm to 100ppm concentration of ...

Streaming Caused by Impulse Acoustic Wave

Five eigenvectors of the linear thermoviscous flow over the homogeneous background derived for the quasi-plane geometry of the flow. The corresponding projectors are calculated and applied to get the nonlinear evolution equations for the interacting vortical and acoustic modes. Equation on streaming cased by arbitrary acoustic wave is specified. The correspondence to the known results on stream...

Experimental Study of Acoustic Streaming Phenomenon Generated by Piezoelectric Transducers

The presented work is a study of acoustic microagitation, based on piezoelectric transducers, for being applied in microfluidic devices to promote mixing. The study comprises an experimental verification, by microscopy, of this phenomenon. It can be observed that the excitation of the PZT and β-PVDF piezoelectric transducers generates the fluid movement and creates patterns of recirculation, ac...