Circular and multi-ring shaped axial magnetizing permanent magnetism antimagnetic rotor induced rotating micro gyroscope

Abstract

An induction rotary micro-gyroscope with cylindrical and multi-ring-shaped axial magnetizing, permanent magnetic and diamagnetic rotors belongs to the field of the micro-electromechanical system and comprises an upper stator, rotors and a lower stator. The invention can realize uncontrolled self-supporting suspension by providing suspension force and lateral stabilizing force to diamagnetic rotors by the cylindrical and multi-ring-shaped axial magnetizing and permanent magnet in the upper and the lower stators, and can realize high-speed rotation of the rotors by rotary electromagnetic field generated by the rotating coils of the upper and the lower stators, and meanwhile, the axial detection of the upper and the lower stators, the lateral detection of a feedback electrode and the lower stator and the electrostatic force between the feedback electrode and the rotors can be used for improving the axial rigidity, the lateral rigidity and the shock resistance of the micro-gyroscope, improving stable suspension performance, and reducing supporting and supporting control difficulties of the rotors, so as to realize self-stabilization without complex control mechanisms. The invention has the advantages of low power consumption, convenient implementation and small size; and can be used for measuring the acceleration of three axes along X-axis, Y-axis and Z-axis and the two axial angle acceleration around the X-axis and the Y-axis at the same time.

Description

technical field [0001] The invention relates to a miniature gyroscope in the field of micro-electromechanical technology, in particular to a circular and multi-ring axially magnetized permanent-magnet diamagnetic rotor induction rotating micro-gyroscope. Background technique [0002] The inertial navigation system is an autonomous navigation technology that directly calculates the navigation parameters such as the position, heading and attitude of the carrier according to Newton's law of inertia. During the working process, it neither transmits energy to the outside world nor obtains information from the outside. It has unique advantages such as being free from interference, can be used anywhere, has good dynamic performance, and rich navigation output information. It is widely used in the fields of aviation, aerospace and navigation. It has been widely used, and the emergence of MEMS (Micro-electromechanical Systems, micro-electromechanical systems) technology has prompted ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to address the above-mentioned deficiencies in the prior art, and to provide a circular and multi-ring axially magnetized permanent magnet reverse magnet rotor induction rotating micro-gyroscope, which relies on cylindrical and multi-ring shafts in the upper and lower stators. Provide the levitation force and lateral stabilizing force to the magnetized permanent magnet to the anti-magnetic rotor, realize uncontrolled self-stabilizing levitation, and make it realize the levitation with anti-magnetic sensitive quality and stability. Compared with the traditional electromagnetic levitation, the levitation coil and stabilizer are omitted. The coil avoids the shortcomings of the electromagnetic damping of the eddy current and the difficulty in increasing the speed. At the same time, the axial detection of the upper and lower stators, the lateral detection of the feedback electrodes and the lower stator, and the electrostatic force between the feedback electrodes and the rotor are used to improve the performance of the micro gyroscope. Axial rigidity, lateral rigidity and impact resistance enhance stable suspension performance

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