Infrared temperature measurement is a technique for determining the surface temperature of objects using non-contact temperature measurement. This method uses the fact that all bodies radiate heat by emitting electromagnetic radiation in the infrared spectral range.
Infrared radiation is part of the electromagnetic spectrum and has a wavelength
longer than that of visible light.

Measuring equipment for this method of temperature measurement includes stationary infrared pyrometers and infrared sensors, portable and stationary infrared cameras and portable infrared thermometers. The intensity of the infrared radiation emitted by an object is measured and converted into a temperature value.

The accuracy of the measurement depends on various factors, including the emissivity of the measured object, the distance of the pyrometer from the measured object and the ambient temperature and influences in the environment such as heat sources and particles in the air.

Infrared temperature measurement is a fast, efficient, precise and non-invasive method that does not require contact with the measurement object and enables rapid monitoring of temperature changes in the millisecond range. It also offers an alternative to traditional contact measurements using sliding contacts or Pt sensors, as no contact with the surface of the measurement object is required.

This technology is used in a wide range of applications, including plant maintenance and repair, quality control and energy saving, industrial process monitoring and research and development.