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Digital particle image thermometry: The method and implementation

Dabiri, D. and Gharib, M. (1991) Digital particle image thermometry: The method and implementation. Experiments in Fluids, 11 (2-3). pp. 77-86. ISSN 0723-4864.

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A computerized flow visualization technique capable of automatically quantifying the temperature field in a two-dimensional cross section of a flow field is described. The temperature sensors used are fast-response temperature-sensitive micro-encapsulated liquid crystal particles. Illuminating the flow by a thin sheet of white light, the reflected colors from the liquid-crystal particles were captured through a 3-chip video color camera and stored onto a videotape for subsequent data processing. The temperature field was obtained through an automatic color-temperature calibration scheme in HSI rather than RGB space, thus allowing for data processing of approximately one-third the time of RGB processing. The technique is finally applied to the study of a heated vortex-ring and some preliminary results are discussed.

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Additional Information:© 1991 Springer-Verlag. Received July 1, 1990. This work is sponsored by the Defense Advanced Research Project Agency-ACMP through the URI program under contract number DARPA/ACMP N00014-86-k-0758. The authors would like to thank Mr. Alex Weigand for his assistance in the heated vortex-ring experiment.
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Issue or Number:2-3
Record Number:CaltechAUTHORS:20130919-120040820
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41412
Deposited By: Tony Diaz
Deposited On:19 Sep 2013 19:46
Last Modified:03 Oct 2019 05:48

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