Harmonic oscillator structure of laser gyroscope

Abstract

The invention discloses a harmonic oscillator structure of a laser gyroscope. The harmonic oscillator structure comprises a center body, a resonant ring, spokes, vibration transmission beams and vibration transmission sheets, wherein a center hole is formed in the center of the center body; the resonant ring sleeves the center body; the outer wall of the center body is connected with the inner wall of the resonant ring through a plurality of the spokes; the spokes are annularly and symmetrically distributed around the center hole; a piezoelectric element is bonded to at least one side of eachof the spokes; the center body is further connected with the vibration transmission sheets through the vibration transmission beams; and the outer walls of the vibration transmission sheets are matched with the inner walls of containing holes formed in an optical cavity of the laser gyroscope. The harmonic oscillator structure has the remarkable effects that the structure is simple, the manufacturing is simple, the mechanical sensitivity is higher than that of a traditional structure, the lock area of the optical laser gyroscope is well reduced or even eliminated, and the performance and the precision of a laser gyroscope product are effectively improved.

Description

technical field [0001] The invention relates to the technical field of laser gyroscope production, in particular to a harmonic oscillator structure of a laser gyroscope. Background technique [0002] Due to its unlimited angular velocity measurement range, the optical laser gyroscope does not require a mechanically stable platform, making it an ideal strapdown angular velocity sensor, which is widely used in navigation, positioning, and orientation. However, due to its own area-locking problem, it affects the performance and accuracy of the product. [0003] In order to reduce the lock-up area or even eliminate the lock-up area, a jitter bias device is introduced, which can make the laser gyroscope work outside the lock-up area and avoid the lock-up area. The piezoelectric vibrator relies on electricity to generate deformation, thereby driving the spokes of the vibrator to deform and start vibrating. The vibrator in the traditional technology has a circular symmetrical str...

AI Technical Summary

Problems solved by technology

However, the existing vibrator structure has problems such as high processing accuracy requirements, high processing difficulty, and high manufacturing cost.

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