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We apply the Lamb wave resonators (LWRs) in microfluidic field, and design a novel MEMS device consisting of 4 LWRs, that can efficiently drive multiple cylindrical vortices and locally enrich the bioparticles in liquid. The acoustic streaming effects in the fluid induced by the LWR is deduced. A numerical simulation method to compute the acoustic streaming effect is presented, and based on which,...
This paper presents a transverse mode suppression theory and its experimental verification through aluminum nitride Lamb wave resonators (LWRs) operating at 142 MHz. An effective 2-D approximation model of the LWR is proposed, based on which the origin of transverse modes in LWR is investigated. The displacement distribution, resonant frequencies, and electromechanical coupling coefficients $( k_{t}^{2})$ ...
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