Vibrating gyroscope based on one-piece cylindrical shell quartz resonator and piezoelectric film

Abstract

The invention relates to the field of vibratory gyroscopes, in particular to a vibratory gyroscope for drive detection based on an integrated cylindrical shell quartz harmonic oscillator and a piezoelectric film. The vibratory gyroscope is composed of the integrated cylindrical shell quartz harmonic oscillator and the piezoelectric film. The integrated cylindrical shell quartz harmonic oscillator is integrally machined from high-purity quartz materials and comprises a resonance ring, a vibration guide ring, a base plate and a fixing column. The resonance ring, the vibration guide ring, the base plate and the fixing column are coaxially placed, the resonance ring, the vibration guide ring and the base plate are sequentially arranged from bottom to top, and the fixing column is located in the center of the side, close to the vibration guide ring, of the base plate. The vibratory gyroscope for drive detection based on the integrated cylindrical shell quartz harmonic oscillator and the piezoelectric film has the remarkable advantages of being high in precision, low in machining cost, high in sensitivity, small in drift error, low in power consumption and the like.

Description

technical field [0001] The invention relates to the field of vibrating gyroscopes, in particular to a vibrating gyroscope based on an integrated cylindrical shell quartz resonator and a piezoelectric film for drive detection. Background technique [0002] Gyroscope is a sensor that detects angular motion of objects in inertial space, and is a key device for inertial navigation, guidance and attitude control. The cylindrical shell vibrating gyroscope is sensitive to angular velocity based on the Coriolis principle. It is a rotorless gyroscope different from the traditional mechanical rotor gyroscope. Mechanical friction fundamentally reduces drift errors. Cylindrical shell vibrating gyroscopes have the advantages of high precision, long life, good reliability, small size, light weight, and low power consumption. They are highly valued in the field of inertial technology, especially in the field of space navigation, and have broad application prospects. [0003] The principl...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: to improve the problem that the quality factor of the resonator of the existing cylindrical shell vibrating gyroscope is generally low, and to further reduce the detection sensitivity of the vibrating gyroscope and increase the To solve the problem of drift error, a cylindrical shell vibrating gyroscope based on an integrated cylindrical shell quartz resonator and piezoelectric film drive detection is proposed

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