A New Method of Simultaneous Measurement of Thermal Properties by Iterative Calculations

Abstract

A new method of simultaneous measurement of thermal properties--- thermal conductivity, thermal diffusivity and heat capacity ----- of plane-shaped solids by continuous heating is presented. The principles of the measurement are based on the iterative calculations, that is, the numerically calculated temperature responses of a specimen with assumed thermal properties are compared with the experimental ones, and the above procedure is iterated until the calculated temperature responses coincide with the experimental ones. Necessary conditions of measurement and calculation are determined by theoretical analysis. This method is examined theoretically and experimentally and is shown to be useful for rapid estimation of temperature dependencies of the above thermal properties.