Study on SAW Streaming and its Application to Fluid Devices

1 January 1990

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 29 (S1)
https://doi.org/10.7567/jjaps.29s1.137

Abstract

Various liquid motions such as streaming and droplet formation on the surface of SAW propagation substrate are called SAW streaming. Experiments on SAW streaming using 128° rot. Y–X LiNbO₃ at the frequency of 50 MHz with various pulse widths are described. Surface treatment of SAW substrate by silanization is employed to demonstrate the droplet ejection. Theoretically, SAW streaming force can be derived using the acoustic streaming theory. The calculated SAW streaming force is found to be very large and strong enough to expel a droplet from a liquid surface.

Keywords

SAW STREAMING
TREATMENT
SILANIZATION
EJECTION
FLUID
MHZ
EXPEL
THEORETICALLY

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