METHOD OF MEASURING BRIGHTNESS TEMPERATURE OF AN OBJECT Russian patent published in 2020 - IPC G01J5/52 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and method of measuring object brightness temperature. Method comprises using a reference radiation source, specifying the reference source radiation band, comparing the energy luminosity of the object and the reference source in the given spectral band of radiation, controlling the radiation power of the reference source until equality of energy luminosity of the source and object is achieved, measuring the achieved radiation power of the reference source and calculating its energy luminosity. Further, coefficient of nonequivalence of radiation spectrum of reference source or object is calculated for spectrum of ideal black body. Required brightness temperature of the object is calculated taking into account the energy luminosity and effective width of the spectral band of the reference source, the central wavelength of the ideal black body and the coefficient of nonequivalence.

EFFECT: technical result is higher accuracy of measuring brightness temperature.

2 cl, 5 dwg