Development of modulated laser calorimetry using a solid platinum sphere as a reference

This study is a fundamental investigation aimed at developing a new noncontact modulated laser calorimetry method incorporating a static magnetic field to achieve measurement of the true thermal conductivity of a metallic melt. For establishing the experimental principle, a solid platinum sphere was...

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Published inMeasurement science & technology Vol. 18; no. 7; pp. 2059 - 2066
Main Authors Fukuyama, Hiroyuki, Kobatake, Hidekazu, Takahashi, Kakeru, Minato, Izuru, Tsukada, Takao, Awaji, Satoshi
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.07.2007
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Summary:This study is a fundamental investigation aimed at developing a new noncontact modulated laser calorimetry method incorporating a static magnetic field to achieve measurement of the true thermal conductivity of a metallic melt. For establishing the experimental principle, a solid platinum sphere was used in this study. The sphere positioned in the centre of a radio frequency coil was heated sinusoidally by a laser; its temperature response was monitored. Analyses of the temperature amplitude and phase difference between the laser input and temperature response yielded the heat capacity, thermal conductivity and hemispherical total emissivity of platinum for temperatures of 1400-1700 K. The obtained data agree with the reference data within experimental uncertainty, which verifies the experimental method.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/18/7/036