Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 3571-3586 |
| Number of pages | 16 |
| Journal | Proceedings of the Royal Society of London Series A - Mathematical Physical and Engineering Sciences |
| Volume | 468 |
| Issue number | 2147 |
| Early online date | 11 Jul 2012 |
| DOIs | |
| Publication status | Published - 8 Nov 2012 |
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