CASPIAN JOURNAL

MANAGEMENT AND HIGH TECHNOLOGIES

METHOD FOR EVALUATING ANGULAR VELOCITY OF A PRECISION ROTARY TABLE

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Ermakov Roman V., Seranova Anna A., Lvov Aleksey A., Kalikhman Dmitriy M. METHOD FOR EVALUATING ANGULAR VELOCITY OF A PRECISION ROTARY TABLE // Caspian journal : management and high technologies. — 2019. — №4. — pp. 144-164.

Ermakov Roman V. - Cand. Sci. (Engineering), Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya St., Saratov, 410054, Russian Federation, roma-ermakov@yandex.ru

Seranova Anna A. - post-graduate student, Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya St., Saratov, 410054, Russian Federation, seranova.anna@gmail.com

Lvov Aleksey A. - Doct. Sci. (Engineering), Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya St., Saratov, 410054, Russian Federation, alvova@mail.ru

Kalikhman Dmitriy M. - Doct. Sci. (Engineering), PC “Korpus”, Branch of FSUE N.A. Pilyugin “NPCAP”, 1 Osipov St., Saratov, 410019, Russian Federation, lidkalihman@yandex.ru

Gyroscopic devices are widely used in various fields of technology. In their production, controlled bases (stands) are used, which specify with high accuracy and stability angular velocities that vary according to a certain law. The creation of such stands is an independent task, the successful solution of which largely determines the progress in the development of gyroscopic instrumentation. The article describes a method that allows estimating the angular velocity of the platform of the turntable for specifying the angular velocity, which is optimal by the criterion of the minimum mean square error of this estimate, due to the integration of information from several sensors based on the measurement principles of which various physical the laws. Expressions are given that allow us to estimate the angular velocity using the maximum likelihood method, based on the readings of each of the sensors. A method for obtaining an integral estimate of the angular velocity of a bench platform is described. The results of simulation modeling of the described stand were analyzed, which confirmed the feasibility of applying the proposed methodology.

Key words: угловые измерения, погрешность, метод максимального правдоподобия, оптимальная оценка, тангенциальное и центростремительное ускорение, угловая скорость, полигауссовский закон распределения, Angular measurements, optical angular sensor, angular velocity se