Near-field ultrasound floated-type gyroscope

Abstract

The invention discloses a near-field ultrasound floated-type gyroscope, comprising a cylinder stator, a rotor and an end cover, the rotor is arranged in the cylinder stator, the end cover is arranged at two ends of the rotor, axial floated-type supporting plates are respectively arranged at two end parts of the rotor, cylinder stator ceramics is arranged on the cylinder stator, and a ring-shaped ceramic wafer is arranged between the axial floated-type supporting plate and the end cover; a first voltage is applied to the cylinder stator ceramics, so as to lead the cylinder stator to excite first row of waves, and the stator is non-contacted with the cylinder stator under the action of the first row of the waves along the radial direction and rotates axially; second voltage is applied to the ring-shaped ceramic wafer to lead the axial floated-type supporting plate to excite second row of waves, and the stator keeps non contact with the cylinder stator under the action of the second row of the waves and axial rotating torque is increased. Compared with the prior art, the structure of the near-field ultrasound floated-type gyroscope is more contact without being affected by external magnetic field, the processing and assembly are easy to realize to have high precision, and the installation and application are convenient.

Description

Technical field: [0001] The invention relates to a gyroscope, in particular to an ultrasonic suspension gyroscope belonging to the field of suspension gyroscopes. Background technique: [0002] Gyroscope is the basic element of inertial navigation system and gyro navigation equipment. Its basic structure is as follows: figure 1 As shown, the main components are: (1) Gyro rotor (synchronous motor, hysteresis motor, three-phase AC motor and other driving methods are often used to make the gyro rotor rotate around the rotation axis at high speed, and its speed is approximately constant); ( 2) Inner and outer frames (or called inner and outer rings, which are structures that enable the gyroscope's rotation axis to obtain the required degree of freedom of angular rotation); (3) Accessories (referring to torque motors, signal sensors, etc.). A modern gyroscope is an instrument that can accurately determine the orientation of a moving object. The accuracy of the gyroscope determi...

AI Technical Summary

Problems solved by technology

However, the electromagnetic and electrostatic suspension gyroscopes currently proposed require strong electric fields or high vacuum working conditions, and the realization of the system structure is relatively complicated, which limits the application of this type of suspension gyroscope.

At present, no gyroscope based entirely on near-field ultrasonic levitation has been proposed

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