Luminescent two-color tracer particles for simultaneous velocity and temperature measurements in microfluidics. Massing, J., Kaden, D., Kaehler, C. J., & Cierpka, C. MEASUREMENT SCIENCE AND TECHNOLOGY, NOV, 2016. doi abstract bibtex The simultaneous and non-intrusive measurement of temperature and velocity fields in flows is of great scientific and technological interest. To sample the velocity and temperature, tracer particle based approaches have been developed, where the velocity is measured using PIV or PTV and the temperature is obtained from the intensity (LIF, thermographic phosphors) or frequency (TLC) of the light emitted or reflected by the tracer particles. In this article, a measurement technique is introduced, that relates the luminescent intensity ratio of individual dual-color luminescent tracer particles to temperature. Different processing algorithms are tested on synthetic particle images and compared with respect to their accuracy in estimating the intensity ratio. Furthermore, polymer particles which are doped with the temperature sensitive dye europium (III) thenoyltrifluoroacetonate (EuTTA) and the nearly temperature insensitive reference dye perylene are characterized as valid tracers. The results show a reduction of the temperature measurement uncertainty of almost 40% (95% confidence interval) compared to previously reported luminescent particle based measurement techniques for microfluidics.
@article{ ISI:000385481700001,
Author = {Massing, J. and Kaden, D. and Kaehler, C. J. and Cierpka, C.},
Title = {{Luminescent two-color tracer particles for simultaneous velocity and
temperature measurements in microfluidics}},
Journal = {{MEASUREMENT SCIENCE AND TECHNOLOGY}},
Year = {{2016}},
Volume = {{27}},
Number = {{11}},
Month = {{NOV}},
Abstract = {{The simultaneous and non-intrusive measurement of temperature and
velocity fields in flows is of great scientific and technological
interest. To sample the velocity and temperature, tracer particle based
approaches have been developed, where the velocity is measured using PIV
or PTV and the temperature is obtained from the intensity (LIF,
thermographic phosphors) or frequency (TLC) of the light emitted or
reflected by the tracer particles. In this article, a measurement
technique is introduced, that relates the luminescent intensity ratio of
individual dual-color luminescent tracer particles to temperature.
Different processing algorithms are tested on synthetic particle images
and compared with respect to their accuracy in estimating the intensity
ratio. Furthermore, polymer particles which are doped with the
temperature sensitive dye europium (III) thenoyltrifluoroacetonate
(EuTTA) and the nearly temperature insensitive reference dye perylene
are characterized as valid tracers. The results show a reduction of the
temperature measurement uncertainty of almost 40\% (95\% confidence
interval) compared to previously reported luminescent particle based
measurement techniques for microfluidics.}},
DOI = {{10.1088/0957-0233/27/11/115301}},
Article-Number = {{115301}},
ISSN = {{0957-0233}},
EISSN = {{1361-6501}},
ResearcherID-Numbers = {{Cierpka, Christian/C-2725-2011
Kahler, Christian/D-5932-2011}},
Unique-ID = {{ISI:000385481700001}},
}
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J.","Cierpka, C."],"bibdata":{"bibtype":"article","type":"article","author":[{"propositions":[],"lastnames":["Massing"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Kaden"],"firstnames":["D."],"suffixes":[]},{"propositions":[],"lastnames":["Kaehler"],"firstnames":["C.","J."],"suffixes":[]},{"propositions":[],"lastnames":["Cierpka"],"firstnames":["C."],"suffixes":[]}],"title":"Luminescent two-color tracer particles for simultaneous velocity and temperature measurements in microfluidics","journal":"MEASUREMENT SCIENCE AND TECHNOLOGY","year":"2016","volume":"27","number":"11","month":"NOV","abstract":"The simultaneous and non-intrusive measurement of temperature and velocity fields in flows is of great scientific and technological interest. To sample the velocity and temperature, tracer particle based approaches have been developed, where the velocity is measured using PIV or PTV and the temperature is obtained from the intensity (LIF, thermographic phosphors) or frequency (TLC) of the light emitted or reflected by the tracer particles. In this article, a measurement technique is introduced, that relates the luminescent intensity ratio of individual dual-color luminescent tracer particles to temperature. Different processing algorithms are tested on synthetic particle images and compared with respect to their accuracy in estimating the intensity ratio. Furthermore, polymer particles which are doped with the temperature sensitive dye europium (III) thenoyltrifluoroacetonate (EuTTA) and the nearly temperature insensitive reference dye perylene are characterized as valid tracers. The results show a reduction of the temperature measurement uncertainty of almost 40% (95% confidence interval) compared to previously reported luminescent particle based measurement techniques for microfluidics.","doi":"10.1088/0957-0233/27/11/115301","article-number":"115301","issn":"0957-0233","eissn":"1361-6501","researcherid-numbers":"Cierpka, Christian/C-2725-2011 Kahler, Christian/D-5932-2011","unique-id":"ISI:000385481700001","bibtex":"@article{ ISI:000385481700001,\nAuthor = {Massing, J. and Kaden, D. and Kaehler, C. J. and Cierpka, C.},\nTitle = {{Luminescent two-color tracer particles for simultaneous velocity and\n temperature measurements in microfluidics}},\nJournal = {{MEASUREMENT SCIENCE AND TECHNOLOGY}},\nYear = {{2016}},\nVolume = {{27}},\nNumber = {{11}},\nMonth = {{NOV}},\nAbstract = {{The simultaneous and non-intrusive measurement of temperature and\n velocity fields in flows is of great scientific and technological\n interest. To sample the velocity and temperature, tracer particle based\n approaches have been developed, where the velocity is measured using PIV\n or PTV and the temperature is obtained from the intensity (LIF,\n thermographic phosphors) or frequency (TLC) of the light emitted or\n reflected by the tracer particles. In this article, a measurement\n technique is introduced, that relates the luminescent intensity ratio of\n individual dual-color luminescent tracer particles to temperature.\n Different processing algorithms are tested on synthetic particle images\n and compared with respect to their accuracy in estimating the intensity\n ratio. Furthermore, polymer particles which are doped with the\n temperature sensitive dye europium (III) thenoyltrifluoroacetonate\n (EuTTA) and the nearly temperature insensitive reference dye perylene\n are characterized as valid tracers. 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