Methods and Facilities for Automatic Temperature Measurements through Natural Radiation of the Object with Due Regard for Radiation Variations

Methods for reduction of the error $\varepsilon$ caused by variation in the radiation capacity are described for temperature measurement through natural radiation of the object. The areas of their application are determined and certain units for automatic temperature measurement relying on these methods are determined. Analysis of temperature measurement methods based on generation of a correction in proportion to $\varepsilon$ or $\varepsilon_1/\varepsilon_2$, is published for the first time.