FOUR-FREQUENCY LASER GYROSCOPE OF ZEEMAN TYPE Russian patent published in 2020 - IPC G01C19/66 

FIELD: physics.

SUBSTANCE: invention relates to high-precision laser gyroscopy, specifically to Zeeman-type laser gyroscopes. Four-frequency laser gyroscope has sign-alternating Zeeman magnetooptical frequency supply for eliminating the phenomenon of counter-wave frequency capture and periodic displacement of frequencies of generated waves by magnetic field in order to further compensate for effect of magnetic fields on measurement of angular rotation speed during signal processing, non-planar symmetrical resonator for generation of circularly polarized waves, elimination of absorbing and scattering intracavity elements, as well as providing operation in four-frequency mode during overloads and shocks and reducing mutual effect of waves of opposite circular polarisations, along four symmetrically located active channels and coils of Zeeman magnetooptical frequency support for uniform housing heating, optical mixer with six photoreceivers for compensation of magnetic fields effect on angular rotation speed measurements, two faces for fixation of four-frequency laser gyroscopes as part of navigation system by placing on optical contact in order to efficiently remove heat and fixation of mutual orientation of sensitivity axes of four-frequency laser gyroscopes, fastening to bolt through dish-shaped spring in order to reduce dimensions of four-frequency laser gyroscope.

EFFECT: high accuracy of navigation systems when using said four-frequency laser gyroscope.

3 cl, 8 dwg