METHOD OF GRADUATION OF OPTICAL RADIATION SPECTRUM AND DEVICE FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: optical instrumentation engineering. SUBSTANCE: high measurement accuracy in wide spectral range is achieved thanks to increased precision of determination of sections λ_r in spectrum S of primary radiation E corrected by intensity and to increased number of them as graduation radiation I of source of line spectrum is decomposed beforehand in space along spectral lines λ_i which images are scanned in synchronism by multielement photodetector and by frequency, amplitude and spatial spectrum of photoelectric signals K = F{j,U_n(Δλ_j),f_n(Δλ_j)}. Its coded conversion forms reference section λ_r of spectrum used to conduct reference correction of intensity of spectrum. EFFECT: high measurement accuracy in wide spectral range. 2 cl, 3 dwg