An experimental setup for studying electric characteristics of thermocouples

Abstract

This paper presents a computer-controlled experimental setup to study electric characteristics of thermocouples, aiming for a better thermoelectric nondestructive testing qualities. To study thermoelectric characteristics of thermocouples, experimentation should be conducted for determining possible dependencies such as temperature and load resistance. Each experimental measurement should be taken with a different value of load resistance and each carried out at various temperatures over a wide range. Load resistors are integrated in a toggle switch panel, to ensure the accuracy and ease of use. Temperatures have been successfully held stable with the help of a heat chamber and its designed control system. Such an experimental setup is capable of accurately gathering measurement data, which can effectively benefit research in investigating thermoelectric materials of different characteristics.