Measurement of thermal diffusivity of semi-transparent thin plate by phtoacoustic method

被引：0

作者：

Yoshida, A ^{[1
]}

Nogami, H ^{[1
]}

Kurita, T ^{[1
]}

Washio, S ^{[1
]}

机构：

[1] Okayama Univ, Dept Mech Engn, Okayama 7008530, Japan

来源：

ANALYTICAL SCIENCES | 2001年 / 17卷

关键词：

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A photo-acoustic method was applied to the measurement of thermal diffusivity of thin plate which was semi-transparent for radiation. An analytical model was newly proposed to consider radiation transfer including scattering process. The calculated results indicated that the phase lag between the incident irradiation and the detected sound strongly depended on the absorption coefficient of radiation. The effects of the scattering coefficient on the phase lag were much smaller than those of the absorption coefficient. The thermal diffusivity and the absorption coefficient of color cellophane films and alumina plates could be simultaneously and properly determined based on the analysis of the measured data.

引用

页码：S154 / S157

页数：4

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