What is it about?

Acoustic levitation can be employed to manipulate, control objects, and containerless transportation of liquids. The purpose of our model is to calculate the force and torque on objects of arbitrary shapes and sizes and its translational and rotational resonance frequencies in a single-axis acoustic levitator.

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Why is it important?

We have tested numerical models using a disk with an excellent experimental agreement. The models are also used for calculating the vertical, horizontal, and torsional trapping stiffness and its corresponding natural frequencies, showing a good agreement between simulation and experiments.


The methodology employed here may facilitate the design of new devices for levitating and manipulating non-spherical objects in mid-air. This approach is of fundamental importance for developing a new generation of contactless robots that could be used for manipulating small objects without any contact between the robot gripper and the object.

Sílvio Vieira
Universidade Federal de Goias

Read the Original

This page is a summary of: Translational and rotational resonance frequencies of a disk in a single-axis acoustic levitator, Journal of Applied Physics, June 2020, American Institute of Physics,
DOI: 10.1063/5.0007149.
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