ADVANCED METHOD AND DEVICE FOR MEASUREMENT OF ELECTRICAL CONDUCTIVITY AND THERMO-EMF COEFFICIENT FOR THERMOELECTRIC MATERIALS

Abstract

The review of methods of measurement of electrical conductivity and thermoelectric coefficient for bulk thermoelectric materials. These parameters determine the thermoelectric power α²σ for semiconductor materials are used to create thermoelectric generators. Despite the simplicity of the methods of measuring these parameters of their practical implementation associated with considerable difficulties, this leads to errors in measurement results that affect the assessment of the effectiveness of new thermoelectric materials. The review analyzes the metrological characteristics of thermoelectric parameters, principles of experimental determination. An improved method for measuring the parameters of thermocouples is proposed and the design of the device for its implementation is developed