Open AccessCompensation Gyrocompass Based on MEMS
Author(s) -
V. M. Bogolyubov,
Lyalya Bakhtieva
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2096/1/012203
Subject(s) - gyroscope , control theory (sociology) , kinematics , control moment gyroscope , offset (computer science) , azimuth , torque , compensation (psychology) , rate integrating gyroscope , engineering , moment (physics) , accelerometer , gimbal , computer science , physics , vibrating structure gyroscope , aerospace engineering , classical mechanics , optics , psychology , control (management) , artificial intelligence , psychoanalysis , thermodynamics , programming language , operating system
The study of an astatic compensating gyrocompass, built on the basis of a modulation micromechanical gyroscope (MMG) of a hybrid type, has been carried out. A kinematic diagram is given and the principle of operation of the device has describing. The device uses the modulation principle based on obtaining information about the angular motion of the rotor and creating control torques in a rotating coordinate system, which makes it possible to exclude such a significant disadvantage of MMG as "zero offset". A feature of the gyrocompass under consideration is the use of two channels for controlling the rotor of the MMG, namely: a channel for the formation of a guiding moment, striving to combine its main axis with the direction of the true meridian and a channel for compensating this guiding moment. A linearized mathematical model has building, on the base of which an effective algorithm for the operation of a compensatory astatic gyrocompass is proposed. The device under consideration can be used to determine the true azimuth of the longitudinal axis of a mobile ground object, it has a higher measurement speed compared to devices built on three-degree "heavy" gyroscopes, and has good resistance to external influences (vibrations, shocks, etc.).