To comply given temperatures is a process and quality defining factor during almost all industrial production stages. Contactless measuring infrared thermometers are well known for temperature measurements. This also applies for the measurement
of metals. A proper monitoring and control of process temperatures requires very good guidance by the producer or basic knowledge regarding the measurement techniques on the part of the customer.
Important parameters, like emissivity and reflection as well as out of these resulting causes for measuring mistakes, will be explained in the following article. The influence on the measurement of metals will also be shown and it will be presented why a reliable and reproducible measurement is possible.