FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment in the field of pyrometric measurements, is intended for calibration of radiation pyrometers, measurement of temperature of real objects and can be used in metrology, in industry, in performance of scientific research. Invention consists in the fact that for preliminary calibration of pyrometer two radiation sources are used, first of which is model of absolutely black body with spectral radiation coefficient within specified accuracy equal to one, and the second source is an emitter with a spectral radiation coefficient known to within a given accuracy, the value of which differs significantly from the spectral radiation coefficient of the first source. During pyrometer calibration and object temperature measurements, the pyrometer readings are corrected from the calculated value of the radiation coefficient for the system of bodies – pyrometer – second source, pyrometer – object. Temperature of the object is measured in stages using the method of successive approximations.
EFFECT: technical result is high accuracy of measuring temperature by eliminating methodological error inherent in known methods.
3 cl, 4 dwg
