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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

PHOTOTHERMAL MEASUREMENTS OF THERMAL DIFFUSIVITIES

Get access (open in a dialog) DOI: 10.1615/IHTC7.2780
pages 539-543

Résumé

Two experimental methods are proposed for the determination of thermal diffusivities. The two methods use periodic excitations of the samples and indirect detections of the temperature modulations induced at the surfaces of samples. The measurements are achieved by mean of microphonic detection in the first case and by using the deflection of a laser beam close to the sample in the second case. The theoretical and experimental problems are discussed in order to determine the possibilities of the two methods.