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Updated: Feb 1, 2026
12:26
Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
Published on: August 27, 2013
17.9K
Flexible wide-field high-resolution scanning camera for continuous-wave acoustic holography
Hillary W Gao1, Kimberly I Mishra1, Annemarie Winters1
1Department of Physics and Center for Soft Matter Research, New York University, New York, New York 10003, USA.
The Review of Scientific Instruments
|December 4, 2018
Summary
This study introduces a novel system for acoustic holography, enabling precise 3D sound field reconstruction. The method accurately measures acoustic waves and analyzes object dynamics, overcoming limitations of optical holography.
Area of Science:
- Acoustics
- Wave physics
- Holography
Background:
- Optical holography faces reconstruction challenges due to the inverse problem.
- Accurate measurement of acoustic fields is crucial for various applications.
Purpose of the Study:
- To develop a system for measuring acoustic pressure field amplitude and phase.
- To reconstruct the volumetric sound field using acoustic holograms.
- To analyze dynamic properties of insonated objects.
Main Methods:
- Utilizing harmonic acoustic waves for measurement.
- Applying the Rayleigh-Sommerfeld diffraction integral for volumetric reconstruction.
- Developing techniques for dynamic property analysis.
Main Results:
- Demonstrated accurate volumetric reconstructions of simple object arrangements.
- Successfully measured amplitude and phase profiles of acoustic pressure fields.
- Introduced a novel technique for analyzing object dynamics.
Conclusions:
- Acoustic holograms offer complete specification in the recording plane, enabling exact reconstruction.
- The developed system provides a robust method for 3D sound field visualization and object analysis.
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