THERMOELECTRIC MATERIAL EVALUATION DEVICE AND THERMOELECTRIC CHARACTERISTIC EVALUATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a thermoelectric material evaluation device having a simple and inexpensive device constitution and capable of obtaining a measuring result of high precision in a short time, and a thermoelectric characteristic evaluation method.;SOLUTION: The thermoelectric characteristic evaluation device 1 is constituted so that the edge faces Se of a measuring sample S are supported by a pair of blocks 11 so as to be nipped by first and second electrodes 14 and 15, a temperature gradient is formed in the measuring sample S, the thermoelectric capacity α of the measuring sample S is calculated on the basis of the thermoelectromotive force of the measuring sample S, which is measured by a voltmeter 16 in a state that a switch 18 is opened, and the temperature difference between the edge faces Se of the measuring sample S measured by thermocouples 21 and 22, the switch 18 is closed after the thermoelectromotive force of the measuring sample S is generated to perform discharge and the resistivity ρ of the measuring sample S is calculated on the basis of the voltage drop ΔV of the measuring sample S measured by the voltmeter 16 and the current value I measured by an ammeter 17.;COPYRIGHT: (C)2011,JPO&INPIT