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Digital Particle Image Thermometry

Dabiri, Dana and Gharib, Morteza (1990) Digital Particle Image Thermometry. In: Fifth International Symposium on Application of Laser Techniques to Fluid Mechanics and Workshop on the Use of Computers in Flow Measurements. Lissabon , Art. No. 2.1. http://resolver.caltech.edu/CaltechAUTHORS:20131029-094410182

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Abstract

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 flow 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.


Item Type:Book Section
Additional Information:© 1990 Lissabon. This work is sponsored bye the Defense Advanced Research Project Agency-ACMP through the URI program under contract number DARPA/ACMP N00014-18-k-0758 The authors would like to thank Mr. Alex Weigand for his assistance in the heated vortex-ring experiment.
Group:GALCIT
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Funding AgencyGrant Number
DARPA/ACMP URI Program N00014-18-K-0758
Record Number:CaltechAUTHORS:20131029-094410182
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131029-094410182
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42108
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 Oct 2013 17:51
Last Modified:30 Sep 2016 17:35

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