TY - JOUR

T1 - Proof of principle study of ultrasonic particle manipulation by a circular array device

AU - Grinenko, Alon

AU - Wilcox, Paul D.

AU - Courtney, Charles R. P.

AU - Drinkwater, Bruce W.

PY - 2012/11/8

Y1 - 2012/11/8

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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84868095509&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1098/rspa.2012.0232

U2 - 10.1098/rspa.2012.0232

DO - 10.1098/rspa.2012.0232

M3 - Article

VL - 468

SP - 3571

EP - 3586

JO - Proceedings of the Royal Society A: Mathematical Physical and Engineering Sciences

JF - Proceedings of the Royal Society A: Mathematical Physical and Engineering Sciences

SN - 1364-503X

IS - 2147

ER -