Journal of Fluid Science and Technology
Online ISSN : 1880-5558
ISSN-L : 1880-5558
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Non-Intrusive and Quick Response Thermometry Using Laser-Induced Thermal Acoustics (LITA)
Toshiharu MIZUKAKI
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2007 Volume 2 Issue 1 Pages 282-289

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Abstract

By using laser-induced thermal acoustics, we demonstrate a non-invasive and remote method to measure the speed of sound and temperature ranging from 278 K to 341 K in distilled water at atmospheric pressure. The accuracies of the measured speed of sound and temperature were found to be 3% and 4%, respectively. Single-shot precisions based on three standard deviations of 20 samples were within 4% for the speed of sound and the temperature. The time resolution for each measurement was 300 ns.

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© 2007 by The Japan Society of Mechanical Engineers
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