Global rainbow thermometry: improvements in the data inversion algorithm and validation technique in liquid-liquid suspension

Improvements on the validation of a nonintrusive laser-based measurement technique are presented. This new technique, called global rainbow thermometry (GRT), is capable of determining the temperature and the size distributions of liquid droplets dispersed in a liquid or gaseous bulk. We propose a n...

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Bibliographic Details
Published in:Applied optics (2004) 2004-06, Vol.43 (18), p.3600
Main Authors: Vetrano, Maria Rosaria, van Beeck, Jeronimus Petrus Antonius Johannes, Riethmuller, Michel Léon
Format: Article
Language:English
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Summary:Improvements on the validation of a nonintrusive laser-based measurement technique are presented. This new technique, called global rainbow thermometry (GRT), is capable of determining the temperature and the size distributions of liquid droplets dispersed in a liquid or gaseous bulk. We propose a new data inversion algorithm that takes into account the whole rainbow pattern. Experimental validation of the GRT technique is performed for a liquid-liquid suspension. We performed the validation by comparing the measurements obtained with the GRT technique for the mean droplet temperature and size with the results obtained with alternative techniques.
ISSN:1559-128X
DOI:10.1364/AO.43.003600