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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

A SIMPLE METHOD OF MEASURING THERMOPHYSICAL PROPERTIES BY STEPWISE HEATING − The Optimum Condition of Surface−Temperature Measurement−

Get access (open in a dialog) DOI: 10.1615/IHTC10.3080
pages 249-254

摘要

The authors developed in a previous report a simple and low-cost method of measuring thermophysical properties of ceramic materials by stepwise heating. One of important points in the method was the way of measuring the surface-temperature of a specimen in a simple and low-cost manner: the surface-temperature was measured by pressing separated thermocouple wires against the specimen surface to which an aluminum foil was attached to make it have high electric and thermal conductivities and thus to form a thermocouple junction on the surface. However, the optimum condition of the thicknesses of the aluminum foil and the thermocouple wire was not evident in the previous report. In the present report the effect of these factors on the accuracy of the measurement has been theoretically and experimentally investigated by using Pyrex 7740 glass as a specimen, and the optimum condition of the measurement has been clarified.