Heat coefficient measuring device and thermal coefficient measuring method

摘要

PROBLEM TO BE SOLVED: To provide a thermal coefficient measuring device and a thermal coefficient measuring method capable of performing a highly accurate measurement with less effort.SOLUTION: The thermal coefficient measuring device includes: a heater 110; a control unit 120; a heat bath 130; temperature data generation units 140, 150; a calculation unit 160; and a heat transfer unit 170. The heater 110 applies heat to a sample 20. The control unit 120 controls an input to the heater 110. The control unit 120 alternatively inputs a first electric power to be a fixed value and a second electric power to be a fixed value different from the first electric power to the heater 110 in a cycle T. The heat bath 130 is thermally connected to the sample 20 by the heat transfer unit 170. A thermal amount of the heat bath 130 is sufficiently larger than the thermal amount of the sample 20, and the temperature of the heat bath 130 is kept constant. The calculation unit 160 calculates a thermal relaxation time period τ between a sample system including the heater 110 and the sample 20 and the heat bath 130 on the basis of the cycle Tand an amplitude &Dgr; Twhich is a temperature difference between the sample 20 and the heat bath 130, and calculates a specific heat c from the thermal relaxation time period τ.