Abstract
The article presents the development and analysis of the models of various IDT
designs and for the acoustophoretic control of microparticles in of lab chip
microchannels. The novelty of the work consists in the development of mathematical
models for new configurations of IDT, suitable for focusing, sorting and concentrating
of heterogeneous microparticles. The developed models are implemented in the COMSOL
environment, which allows the designer to use them for the calculation of the specified
IDT structures for real acoustofluidic lab-chips. It is shown that increasing the
performance and stability of the SAW can be achieved by choosing the material of the
piezoelectric substrate with a high coefficient of electromechanical coupling, as well
as optimizing the structural and technological parameters of both IDT and microchannel.
Various variants of constructions of the IDT were considered and their comparative
analysis was carried out.
Publisher
Lviv Polytechnic National University