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UDC 62-933.2:62-932.4:533.9

NONSTATIONARY IONIZATION BALANCE IN A BILATERAL DISCHARGE AND THE BIAS INSTABILITY OF A LASER GYRO

H. N. Dao, post-graduate student of the Department of industrial electronics, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
V. V. Klimakov, Ph.D. (Tech.), assistant professor of the Department of industrial electronics, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. E. Serebryakov, Ph.D. (Tech.), assistant professor of the Department of electronic devices, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
V. Yu. Mishin, Ph.D. (Tech), assistant professor of the Department of electronic devices, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. V. Molchanov, Ph.D. (Tech.), assistant professor, department director of the JSC «Moscow institute of
Electromechanics and Automatics», Moscow; This email address is being protected from spambots. You need JavaScript enabled to view it.
M. V. Chirkin, Dr. Sc. (Phys. and Math.), full professor, Head of the Department of electronic devices, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.

This paper presents the results of experimental studies of nonstationary processes in a gas-discharge plasma and their effects on the output signal of a ring laser gyroscope. The developed experimental setup makes it possible to record and store in digital form the sequence of readings of the angular rate of rotation and the voltage of maintaining a bilateral glow discharge in a ring helium-neon laser. The obtained information was processed using the Allan variance method and wavelet filtering. The slow nonstationary component of an output signal of a gyroscope was selected and its relationship to the asymmetric increase in voltages in the discharge arms is shown. The features of ionization processes that leading to increased bias instability are identified. The aim of the work is to identify the reasons for the slow bias instability of a laser gyro.

Key words: ring laser, laser gyroscope, bias instability, bilateral discharge, positive column, Penning ionization, dissociative recombination.

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