Stator rotation type magnetic-suspension sensitive gyroscope

Abstract

The invention provides a stator rotation type magnetic-suspension sensitive gyroscope, belonging to the technical field of gyroscopes. The gyroscope comprises a magnetic-suspension bearing system, a magnetic-suspension gyroscope rotor system, a torque stator rotating system and a gyroscope chamber, wherein the magnetic-suspension bearing system comprises an upper axial magnetic-suspension bearing, a lower axial magnetic-suspension bearing and a radial magnetic-suspension bearing; the magnetic-suspension gyroscope rotor system comprises a magnetic-suspension gyroscope rotor, a high-speed motor and a torque rotor assembly; the torque stator rotating system comprises a photoelectric code disc, an end surface bearing, a rotary modulating rotor skeleton, a rotary modulating motor, a rotary modulating motor mounting seat, a torque stator changeover panel and a torque stator assembly; and the gyroscope chamber comprises a lower gyroscope chamber, a middle gyroscope chamber and an upper gyroscope chamber. The stator rotation type magnetic-suspension sensitive gyroscope has a rotary modulating function, so that the measurement accuracy of the angular rate of the magnetic-suspension sensitive gyroscope can be increased; and a system has a relatively small volume and relatively low power consumption.

Description

technical field [0001] The invention relates to the technical field of gyroscopes, in particular to a stator rotating magnetic levitation sensitive gyroscope. Background technique [0002] As the main angular rate detection equipment for inertial navigation, gyroscopes play an important role in both military and civilian fields. Existing high-precision, high-bandwidth angular rate sensitive devices such as fiber optic gyroscopes, laser gyroscopes, and magnetic levitation sensitive gyroscopes are used for a long time The angular rate detection error caused by gyro drift including gyro zero bias, random drift and temperature-related error is unavoidable. The impact of gyro drift on the detection accuracy of high-precision gyroscope is fatal. [0003] Rotational modulation technology, by rotating the sensitive axis of the inertial device, it rotates around a fixed coordinate system (generally the carrier coordinate system), so that the gyro drift error in the direction orthogo...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a stator rotating magnetic levitation sensitive gyroscope to overcome the disadvantages of large volume and large power consumption of the existing rotation modulation system

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