High precision on-line error compensation method for drift error of gyro with suspension rotor
The invention relates to a high precision on-line error compensation method for drift error of gyro with suspension rotor. Based on the rigid body dynamics basic principle, a gyro disturbed torque model is established; based on an axial direction Lorentz force magnetic bearing, a high precision anal...
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Main Authors | , , , , , , |
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Format | Patent |
Language | English |
Published |
09.12.2015
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a high precision on-line error compensation method for drift error of gyro with suspension rotor. Based on the rigid body dynamics basic principle, a gyro disturbed torque model is established; based on an axial direction Lorentz force magnetic bearing, a high precision analytical expression of compensating torque is established; real time on-line measurements of gyro rotor corner and Lorentzen coil excitation current by displacement and current sensors are combined, thereby realizing high precision real time on-line compensation of the compensating torque to the disturbed torque. The invention belongs to the field of aerospace measurement and control technology, and is applied to high precision satellite attitude measurement and optimization design, measurement and calibration of the ground gyro. |
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Bibliography: | Application Number: CN20151564942 |