Temperatures

The measurement of temperatures is carried out by so-called thermocouples, which are glued to the prepared surface of the object to be examined. These elements convert heat into electrical energy using thermoelectricity. They consist of two different metals that are connected together. The difference in temperature between the two metals creates an electrical voltage which can then be measured. 

With the help of these elements, the temperature is measured at regular intervals and recorded over the period under investigation. 

Experimental setup of a welding experiment with thermocouple
Experimental setup of a welding experiment with thermocouple