PROCEDURE DETERMINING SPECTRAL RADIATION CAPACITY ( VERSIONS ) Russian patent published in 2001 - IPC

FIELD: pyrometry, determination of coefficients of radiation capacity and temperature of bodies. SUBSTANCE: in correspondence with invention differences of reciprocals of luminance temperatures are measured on two lengths of waves of self- radiation of surface under two values of actual temperature as well as ratios of coefficients of directed spectral reflection ρ(λ,T)T for same values of temperature per each wave length λ.. Sought-for coefficients of radiation capacity ε(λ,T) for two temperatures and both wave lengths are determined by means of obtained ratios. In agreement with another version ratios of spectral luminance for two pairs of temperature (T₁,T₂) and (T₂,T₃) raised to powers having indices numerically equal to corresponding wave lengths are measured for three values of unknown temperatures on each of two wave lengths. Ratios ρ(λ,T) of same pairs of temperatures are measured on same wave lengths. Actual value ε(λ,T) is found from obtained ratios. Technical achievement of invention consists in contact-free determination of coefficients ε(λ,T) of surface, including surface whose radiation does not follow Lambert's law on line. One more version of invention does not require calibration of pyrometer. EFFECT: contact-free measurement of radiation capacity of surfaces. 2 cl, 2 dwg