Accuracy of Simplified CARS Temperature Measurements

The accuracy of simplified CARS (Coherent Anti-Stokes Raman Spectroscopy) temperature measurements has been studied. The proposed CARS method provides the instantaneous temperature determination with the quick measurement of the intensity ratio of N2 CARS spectra by the use of a specially prepared m...

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Bibliographic Details
Published inNihon Kikai Gakkai rombunshuu. B hen Vol. 55; no. 512; pp. 1212 - 1216
Main Authors GOMI, Mitsuo, FUJII, Shoichi, KANAI, Yoshikazu
Format Journal Article
LanguageEnglish
Japanese
Published The Japan Society of Mechanical Engineers 1989
Subjects
Accuracy
temperature distribution
temperature measurement
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Summary:The accuracy of simplified CARS (Coherent Anti-Stokes Raman Spectroscopy) temperature measurements has been studied. The proposed CARS method provides the instantaneous temperature determination with the quick measurement of the intensity ratio of N2 CARS spectra by the use of a specially prepared monochromator, two photomultipliers and data processor including a circuit for sampling mechanism, an A/D converter, and a personal computer. Various causes and their contributions to the measurement errors introduced in these instruments have been evaluated experimentally. In the static hot air experiment, the standard deviation characteristic of the total error was 55 K for the mean temperature 928 K and 1000-shots. It is recommended that 500 laser-shots be used in order to obtain a reasonable mean temperature.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.55.1212