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Proceedings Paper

Theoretical, numerical, and experimental investigation of a one-side measurement technique for thermal diffusivity
Author(s): Alberto Muscio; Mauro A. Corticelli; Paolo Tartarini
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Paper Abstract

A modified Angstrom's method for the measurement of thermal diffusivity in solid materials is presented, aimed at overcoming the limits of ordinary techniques with one-side measurements. The method requires a periodic thermal input to be supplied to the specimen, alternating heating and cooling stages. The thermal diffusivity is estimated by monitoring the temperature oscillations on the free surface of the specimen. The conditions at which a real 3D test- system can be studied by means of a 1D thermal model are investigated. Algorithms to estimate the thermal diffusivity are determined analytically and verified by numerical simulation. The method is finally validated by experimental measurements.

Paper Details

Date Published: 30 March 2000
PDF: 9 pages
Proc. SPIE 4020, Thermosense XXII, (30 March 2000); doi: 10.1117/12.381545
Show Author Affiliations
Alberto Muscio, Univ. di Modena (Italy)
Mauro A. Corticelli, Univ. di Modena (Italy)
Paolo Tartarini, Univ. di Modena (Italy)

Published in SPIE Proceedings Vol. 4020:
Thermosense XXII
Ralph B. Dinwiddie; Dennis H. LeMieux, Editor(s)

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