FIELD: technological processes.
SUBSTANCE: invention is related to measurement equipment. Dispersion device used is reconfigurable acoustooptical filter with availability of single receiver of radiation for pyrometric signals. By values of logarithms of spectral components at extreme (first and third) wavelengths, temperature of spectral ratio is measured, correction to which used to obtain sought for actual temperature is defined by value of logarithms of three spectrum components.
EFFECT: method provides for measurement of spectrum components logarithms, at least, at three equidistantly located wavelengths.
2 cl, 1 dwg
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