Mirage-effect measurement of thermal diffusivity. Part II: theory
- 1 September 1986
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 64 (9) , 1168-1171
- https://doi.org/10.1139/p86-203
Abstract
A three-dimensional theory of a mirage-effect technique for measuring thermal diffusivity of solids is presented. A formula that incorporates sizes and separations of the heating and probe beams; the height of the probe beam above the sample surface; the thermal properties of the sample, the gas, and the backing; and the thickness of the sample is developed. The results are compared with experiments on a bulk sample and on thin slabs of various thicknesses.Keywords
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