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Updated: Aug 8, 2026
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Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
Published on: May 9, 2021
A cluster-optimization method for enhanced standing-wave acoustic fields: Stable levitation and pose manipulation of
Liangxu Jiang1, Zongqi Bai1, Enshun Ren1
1College of Communication Engineering, Jilin University, Changchun 130022, China.
The Journal of the Acoustical Society of America
|August 7, 2026
Summary
This study introduces a novel acoustic levitation method using a radially asymmetric enhanced standing-wave field (RA-ESWF) for precise control of irregularly shaped objects. The technique achieves stable levitation and dexterous pose manipulation, advancing acoustic trapping applications.
Area of Science:
- Acoustic manipulation
- Phased array acoustics
- Wave field generation
Background:
- Acoustic levitation and phased arrays have advanced significantly.
- Simultaneous stable levitation and dexterous pose control of irregularly shaped objects remain challenging.
- Conventional methods often lack the precision for complex object manipulation.
Purpose of the Study:
- To introduce a cluster-optimization method for generating a radially asymmetric enhanced standing-wave field (RA-ESWF).
- To enable simultaneous stable levitation and precise pose control of irregularly shaped objects.
- To decouple orientation-locking and positional-focusing functions for enhanced manipulation.
Main Methods:
- Utilizing opposed ultrasonic arrays to generate a radially asymmetric enhanced standing-wave field (RA-ESWF).
- Dynamically deriving feature phase patterns from a field-phase mapping dataset.
- Integrating parametric optimization to achieve decoupled orientation and positional control.
Main Results:
- The RA-ESWF effectively balances strong levitation force with precise orientation control.
- Demonstrated successful pose manipulation of diverse object shapes (near-spherical, rod-like).
- Achieved high angular stability (0.614° std. dev.) and positional precision (0.048mm X, 0.069mm Y).
Conclusions:
- The proposed RA-ESWF method extends the functionality of conventional opposed-array levitators.
- Offers a robust, optimization-driven framework for advanced acoustic trapping and manipulation.
- Potential applications include micro-reactors, biological sample handling, and non-contact assembly.
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