TY - JOUR
T1 - Proof of principle study of ultrasonic particle manipulation by a circular array device
JF - Proceedings of the Royal Society A: Mathematical, Physical and Engineering Science
SP - 3571
LP - 3586
M3 - 10.1098/rspa.2012.0232
VL - 468
IS - 2147
AU - Grinenko, Alon
AU - Wilcox, Paul D.
AU - Courtney, Charles R. P.
AU - Drinkwater, Bruce W.
Y1 - 2012/11/08
UR - http://rspa.royalsocietypublishing.org/content/468/2147/3571.abstract
N2 - A feasibility study of a circular ultrasonic array device for acoustic particle manipulation is presented. A general approach based on Green's function is developed to analyse the underlying properties of a circular acoustic array. It allows the size of a controllable device area as a function of the number of array elements to be established and the array excitation required to produce a desired field distribution to be determined. A set of quantitative parameters characterizing the complexity of the pressure landscape is suggested, and relation to the number of array elements is found. Next, a finite-element model of a physically realizable circular piezo-acoustic array device is employed to demonstrate that the trapping capability can be achieved in practice.
ER -