Netsu Sokutei, 29 (1), p. 27, (2002)



Temperature Wave Analysis - Application to the Measurement of Thermal Property of Liquid -

Temperature wave analysis (TWA) is a technique to observe the phase shift and the amplitude decay of temperature wave which is generated by a.c. Joule heating and propagating in the thickness direction of specimen by using a sensitive temperature sensor with negligible heat capacity. In this study a new application method of TWA to obtain thermal conductivity of liquid with a probe sensor was introduced. The theoretical background and the experimental set-up were shown. Thermal property of liquid at 25 ℃ by TWA was in good agreement with the literature value.