Journal article
Measuring acoustic energy density in microchannel acoustophoresis using a simple and rapid light-intensity method
We present a simple and rapid method for measuring the acoustic energy density in microchannel acoustophoresis based on light-intensity measurements of a suspension of particles. The method relies on the assumption that each particle in the suspension undergoes single-particle acoustophoresis. It is validated by the single-particle tracking method, and we show by proper re-scaling that the re-scaled light intensity plotted versus re-scaled time falls on a universal curve.
The method allows for analysis of moderate-resolution images in the concentration range encountered in typical experiments, and it is an attractive alternative to particle tracking and particle image velocimetry for quantifying acoustophoretic performance in microchannels.
Language: | English |
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Publisher: | The Royal Society of Chemistry |
Year: | 2012 |
Pages: | 2337-2344 |
ISSN: | 14730189 and 14730197 |
Types: | Journal article |
DOI: | 10.1039/c2lc40120g |
ORCIDs: | Bruus, Henrik |