An analysis of the accuracy of a measuring device with a semi-disk modulator of light flux

Details An analysis of the accuracy of a measuring device with a semi-disk modulator of light flux An analysis of the accuracy of a measuring device with a semi-disk modulator of light flux

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977avtma........5g&link_type=abstract

Avtomatika, Sept.-Oct. 1977, p. 5-13. In Ukrainian.

Astronomy and Astrophysics

Astrophysics

Astrometry, Instrument Errors, Light Modulation, Photomultiplier Tubes, Star Trackers, Error Analysis, Work Functions

Scientific paper

A method is developed to analyze the accuracy of a star tracker with a semi-disk modulator of a light flux. Radial and axial modulator beats are considered along with the Schottky effect of a photomultiplier in the case of sinusoidal and rectangular demodulating functions. The results of a corresponding calculation for a two-coordinate astrometric tracker stabilization system for the astrophysical observatory Orion-2 is presented.

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