Modern Pyrometry

This book is devoted to the ways of further development of pyrometry. A feature of pyrometry is that pyrometers are always calibrated by BB (blackbody), but the radiation spectrum of real objects differs from the radiation spectrum of BB. Therefore, a perfectly calibrated pyrometer will accurately measure the temperature of BB, but it will measure the temperature of a real object emitting differently from BB with an error. The more the intensity and spectrum of radiation of the measured object and BB differ, the greater this error. Therefore, pyrometer measurements always require correction.
The author proposes original correction methods that take into account both the radiation spectrum of the object and its dependence on the temperature of the object. It is shown that increasing the accuracy of measurements is impossible without instruments for measuring the temperature-spectral emissivity of objects, and that the creation of instruments for such measurements is already possible. The analysis of metrological problems of pyrometry is carried out, and ways of their solution are given.