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Related Experiment Video

Updated: May 21, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

A wall-free climate unit for acoustic levitators.

M C Schlegel¹, K-J Wenzel, A Sarfraz

¹BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, Berlin 12489, Germany.

The Review of Scientific Instruments

|June 7, 2012

Summary

This summary is machine-generated.

Acoustic levitation enables contactless sample handling. This study introduces a novel wall-free climate unit for precise environmental control of levitated samples without material interference.

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Area of Science:

Physics
Materials Science
Analytical Chemistry

Background:

Acoustic levitation uses standing acoustic waves for contactless sample manipulation.
This technique has been vital for sample handling in analytical methods for 30 years.
Existing methods often involve material interfaces that can affect analyses.

Purpose of the Study:

To present a novel wall-free climate unit for acoustic levitation.
To enable precise environmental control (temperature, humidity) of levitated samples.
To ensure direct sample access and eliminate material interference in analyses.

Main Methods:

Development of a climate unit utilizing a continuous cold/hot gas flow.
Integration of the unit with an acoustic levitation system.
Demonstration of environmental parameter control around the levitated sample.

Main Results:

Successful implementation of a wall-free climate unit for acoustic levitation.
Demonstrated ability to control the micro-environment around the levitated sample.
Elimination of interference from traditional isolation materials.

Conclusions:

The developed climate unit offers a new approach for controlled sample environments in acoustic levitation.
This innovation enhances the applicability of contactless sample handling in sensitive analytical techniques.
Direct access and environmental control improve data accuracy and experimental flexibility.