Safe and wear-free temperature measurement in induction heating systems

Temperature is the most important process parameter for induction heat treatment. Nevertheless, a precise and long-time stable determination of the temperature is often not quite that simple. A contact measurement with thermocouples is not really practicable in a running production process with moving parts or inductors. Infrared thermometers capture the temperature of the object from its thermal radiation without any contact and are ideal for these measuring tasks. A prerequisite, however, is the correct selection and the correct use of the devices. The following article describes the conditions and the latest technological developments for a safe, precise and long-time stable temperature measurement with pyrometers in induction heating systems.