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Automated and temperature-controlled micro-PIV measurements enabling long-term-stable microchannel acoustophoresis characterization.

Augustsson, Per LU ; Barnkob, Rune; Wereley, Steven T; Bruus, Henrik and Laurell, Thomas LU (2011) In Lab on A Chip 11(24). p.4152-4164
Abstract
We present a platform for micro particle image velocimetry (μPIV), capable of carrying out full-channel, temperature-controlled, long-term-stable, and automated μPIV-measurement of microchannel acoustophoresis with uncertainties below 5% and a spatial resolution in the order of 20 μm. A method to determine optimal μPIV-settings for obtaining high-quality results of the spatially inhomogeneous acoustophoretic velocity fields of large dynamical range is presented. In particular we study the dependence of the results on the μPIV interrogation window size and the number of repeated experiments. The μPIV-method was further verified by comparing it with our previously published particle tracking method. Using the μPIV platform we present a... (More)
We present a platform for micro particle image velocimetry (μPIV), capable of carrying out full-channel, temperature-controlled, long-term-stable, and automated μPIV-measurement of microchannel acoustophoresis with uncertainties below 5% and a spatial resolution in the order of 20 μm. A method to determine optimal μPIV-settings for obtaining high-quality results of the spatially inhomogeneous acoustophoretic velocity fields of large dynamical range is presented. In particular we study the dependence of the results on the μPIV interrogation window size and the number of repeated experiments. The μPIV-method was further verified by comparing it with our previously published particle tracking method. Using the μPIV platform we present a series of high-resolution measurements of the acoustophoretic velocity field as a function of the driving frequency, the driving voltage, and the resonator temperature. Finally, we establish a direct and consistent connection between the obtained acoustophoretic velocity fields, and continuous flow mode acoustophoresis, commonly used in applications. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Lab on A Chip
volume
11
issue
24
pages
4152 - 4164
publisher
Royal Society of Chemistry
external identifiers
  • pmid:21989571
  • wos:000297353800003
  • scopus:84858302177
ISSN
1473-0189
DOI
10.1039/c1lc20637k
language
English
LU publication?
yes
id
bbfe0e9e-4570-44e9-81c2-24fc2ac3a3d5 (old id 2200621)
date added to LUP
2011-11-04 12:29:20
date last changed
2017-09-17 03:18:33
@article{bbfe0e9e-4570-44e9-81c2-24fc2ac3a3d5,
  abstract     = {We present a platform for micro particle image velocimetry (μPIV), capable of carrying out full-channel, temperature-controlled, long-term-stable, and automated μPIV-measurement of microchannel acoustophoresis with uncertainties below 5% and a spatial resolution in the order of 20 μm. A method to determine optimal μPIV-settings for obtaining high-quality results of the spatially inhomogeneous acoustophoretic velocity fields of large dynamical range is presented. In particular we study the dependence of the results on the μPIV interrogation window size and the number of repeated experiments. The μPIV-method was further verified by comparing it with our previously published particle tracking method. Using the μPIV platform we present a series of high-resolution measurements of the acoustophoretic velocity field as a function of the driving frequency, the driving voltage, and the resonator temperature. Finally, we establish a direct and consistent connection between the obtained acoustophoretic velocity fields, and continuous flow mode acoustophoresis, commonly used in applications.},
  author       = {Augustsson, Per and Barnkob, Rune and Wereley, Steven T and Bruus, Henrik and Laurell, Thomas},
  issn         = {1473-0189},
  language     = {eng},
  number       = {24},
  pages        = {4152--4164},
  publisher    = {Royal Society of Chemistry},
  series       = {Lab on A Chip},
  title        = {Automated and temperature-controlled micro-PIV measurements enabling long-term-stable microchannel acoustophoresis characterization.},
  url          = {http://dx.doi.org/10.1039/c1lc20637k},
  volume       = {11},
  year         = {2011},
}