Radiation Pyrometers

Radiation Pyrometers Points : Radiation Pyrometers, Definition When temperatures being measured are very high and physical contact with the medium to be measured in impossible or impractical, the thermal radiation methods or optical pyrometers are used. These pyrometers are used under conditions where corrosive vapours or liquids would destroy thermocouples, resistance thermometers and thermistors, if made to come in contact with the measured medium. These pyrometers find applications for temperatures which are above the range of thermocouples and for rapidly moving objects.