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Updated: May 28, 2026
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A Stable Phantom Material for Optical and Acoustic Imaging
Published on: June 16, 2023
Phase behaviour and phase separation kinetics measurement using acoustic arrays.
1Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G2V4, Canada.
The Review of Scientific Instruments
|November 4, 2011
Summary
An acoustic array precisely detects liquid-liquid interfaces and measures fluid composition in opaque media. This non-intrusive technique tracks phase separation kinetics and diffusion in porous materials with high accuracy.
Area of Science:
- Physical Chemistry
- Materials Science
- Chemical Engineering
Background:
- Acoustic properties like speed of sound and attenuation are sensitive to fluid composition and interfaces.
- Non-intrusive sensing methods are crucial for studying complex fluid systems.
Purpose of the Study:
- To demonstrate an acoustic array as a versatile sensor for liquid-liquid interfaces and fluid composition.
- To measure phase separation kinetics in bulk fluids and local composition in porous media.
Main Methods:
- Utilized a 64-element acoustic array for non-intrusive measurements.
- Employed speed of sound and acoustic wave attenuation for interface detection.
- Conducted benchmark studies with methanol-hexane/heptane mixtures and bitumen-heptane in porous media.
Main Results:
- Accurate detection of liquid-liquid interfaces with 300 μm precision.
- Independent detection using both speed of sound and attenuation.
- Real-time tracking of phase separation kinetics and diffusion at 1 Hz scan rate.
Conclusions:
- The acoustic array technique offers accurate, non-intrusive monitoring of fluid interfaces and composition.
- Suitable for opaque or challenging media where other imaging is limited.
- Potential for significant research and industrial applications, with a current temperature limitation.
