Particle manipulation by a non-resonant acoustic levitator
- 5 January 2015
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 106 (1)
- https://doi.org/10.1063/1.4905130
Abstract
We present the analysis of a non-resonant acoustic levitator, formed by an ultrasonic transducer and a concave reflector. In contrast to traditional levitators, the geometry presented herein does not require the separation distance between the transducer and the reflector to be a multiple of half wavelength. The levitator behavior is numerically predicted by applying a numerical model to calculate the acoustic pressure distribution and the Gor'kov theory to obtain the potential of the acoustic radiation force that acts on a levitated particle. We also demonstrate that levitating particles can be manipulated by controlling the reflector position while maintaining the transducer in a fixed position.Funding Information
- CNPq
- São Paulo Research Foundation
- Petrobras
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