INVESTIGATION OF THE DEVELOPED SPECTROPHOTOMETRIC SENSOR FOR COLORIMETRIC DEVICES USING OPTOELECTRONIC RGB COMPONENTS

The study highlights the development of a spectrophotometric sensor for colorimetric devices using optoelectronic RGB components. Foreign colorimeters, which include spectrophotometers, have a high cost and are sometimes inaccessible to a domestic consumer, therefore, the development of a spectrophotometric sensor for domestic colorimeters built on optoelectronic RGB components may draw interest. The work defines the goal and sets the task of the study. A block diagram, a lighting system with a photometric integrating sphere, and the appearance of a spectrophotometric sensor are presented. The spectral distribution of the signal I(λ) in the measuring channel at level "0" and at level "1" is obtained. The wavelength scale sensor was calibrated using normalized emission lines from a mercury-helium lamp and blue glass of the SS6 make. The resulting error λ = 0.5 nm of calibration of the wavelength scale was obtained. The linearity of the transmission scale was investigated, and the photometric error was estimated in terms of comparing the measured and calculated transmission values T(λ) for colored neutral glasses. The measurement error was no worse than T  0.5%.