STUDY OF THE ANGLE INFLUENCE OF THE INCIDENCE LIGHT IMPACT ON THE ACCURACY OF COORDINATE MEASUREMENTS IN A LINEAR PHOTOSENSITIVE DEVICE WITH CHARGE TRANSFER FOR ORIENTATION SYSTEMS ON THE SUN

The study of the angle influence of the incidence light effect on the accuracy of coordinate measurements in a linear photo-sensitive device with charge transfer (LPDCT) was done. The results of which make it possible to estimate the position of the energy center of the light stroke gravity. The possibilities of optimization of the LPDCT main units have been studied, with the help of which the accuracy and stability of measuring the angular coordinates can be increased. The experimental part is based on the use of a slit raster and a receiver. The function of which is performed by a linear charge-coupled device. After geometric calibration of the optical solar sensor was done, the angle of the beam deflection from the Sun was calculated. Then the coordinate of the energy center of the light line gravity and the relative error in determining the center of gravity were estimated. The dependences of the coordinate shift and the root-mean-square deviation of the gravity center on the angle of the incidence light streak are given using various spectral filters. The results of the study show that the use of spec-tral filters leads to an increase in the accuracy of registration of the light streak and the temporal stability of the measure-ment.

Authors: A. E. Degterev, U. А. Kuzmina, I. А. Lamkin, I. I. Mikhailov, М. М. Romanovich, S. А. Tarasov

Direction: Physics

Keywords: Light stroke, optical solar sensor, LPDCT, the energy center of the light stroke gravity coordinate, temporal stability, light filters, solar orientation system

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