Active damping for acoustic levitation in air

Journal article (2024)

Authors

V. Bos Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
J. Wesselingh Micro and Nano Engineering - Mechanical, Maritime and Materials Engineering
G.J. Verbiest Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
Peter G. Steeneken Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
P.G. Steeneken Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
Research Group
Micro and Nano Engineering (Mechanical, Maritime and Materials Engineering) (TU Delft)
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Published Date

2024

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Precision and Microsystems Engineering

Research Group

Micro and Nano Engineering

Abstract

Acoustic levitation is an attractive and versatile technique that offers several advantages in terms of particle size, range, reconfigurability, and ease of use with respect to alternative levitating techniques. In this paper, we study the use of active damping to improve the response time and positioning precision of an acoustic levitator operating in air. We use a laser Doppler vibrometer to measure the velocity of a levitated particle. Using this information, a control algorithm is designed and implemented to provide active damping. By system identification and modeling, we demonstrate that the active damper mechanism is well-predictable by models and can be electronically reconfigured and controlled.