Harmonic oscillator of solid fluctuation gyro and solid fluctuation gyro

A technology of resonator and gyroscope, which is applied in the direction of speed measurement, gyroscope/steering induction equipment, measuring device, etc. due to the gyro effect, can solve the problems of difficult processing, high processing accuracy requirements, and high manufacturing cost, and achieves high mechanical quality factor. , to ensure the effect of machining accuracy and simple structure

Active Publication Date: 2011-01-05
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing solid wave gyroscope has problems such as high processing precision requirements, high processing difficulty, and high manufacturing cost.

Method used

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  • Harmonic oscillator of solid fluctuation gyro and solid fluctuation gyro
  • Harmonic oscillator of solid fluctuation gyro and solid fluctuation gyro
  • Harmonic oscillator of solid fluctuation gyro and solid fluctuation gyro

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] Such as image 3 , Figure 4 As shown, the resonator of the solid wave gyroscope in this embodiment includes a resonant ring 1 , a vibration transmission part 2 , a chassis 3 and a piezoelectric element 4 , and the resonant ring 1 is connected to the chassis 3 through the vibration transmission part 2 . The resonance ring 1 is a cylindrical ring (or a conical ring), with an outer diameter R=25mm, a thickness t1=1mm, and a height h=5mm. The vibration transmission part 2 is composed of eight supporting beams 21 evenly arranged in the circumferential direction of the resonant ring 1; The busbar L of 21 is perpendicular to the plane where the chassis 3 is located (of course, it can also form a slight inclination angle with the plane where the chassis 3 is located), and the resonant ring 1 is connected to the chassis 3 through the eight supporting beams 21 of the same size. A piezoelectric element 4 (the piezoelectric element is a piezoelectric electrode) is respectively p...

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PUM

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Abstract

The invention discloses a harmonic oscillator of a solid fluctuation gyro, which comprises a resonance ring (1), a resonance transmission part (2), a chassis (3) and a piezoelectric element (4), wherein, the resonance ring (1) is connected with the chassis (3) through the resonance transmission part (2), the resonance transmission part (2) is composed of support beams (21) which are uniformly distributed in the circumferential direction, and the piezoelectric element (4) is arranged on the support beams (21). The invention further discloses the solid fluctuation gyro provided with the harmonic oscillator. The solid fluctuation gyro and the harmonic oscillator of the invention have the advantages of high sensitivity, good sensing effect, convenient machining, low machining cost, simple mechanical balance procedure and the like.

Description

technical field [0001] The invention relates to the field of angle or angular velocity sensors, in particular to a solid wave gyroscope and a harmonic oscillator thereof. Background technique [0002] The solid wave gyroscope uses the inertial effect of elastic waves in a symmetrical shell to measure angular velocity. Because of its high precision, low energy consumption, short preparation time, wide working temperature range, strong resistance to ionizing radiation, good shock and vibration resistance, and long service life, it is often used as an angular velocity sensor and has extremely broad development and application prospects. [0003] The harmonic oscillators of the existing solid wave gyroscopes are all circumferentially symmetrical structures, and the common structural forms are ring, cup-shaped and hemispherical. The circular symmetric harmonic oscillator excites such as figure 1 The first mode of the harmonic oscillator shown by figure 1 It can be seen that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/56G01P9/04G01C19/5642
Inventor 吴学忠陶溢崔红娟吴宇列肖定邦吴小梅陈志华席翔朱炳杰
Owner NAT UNIV OF DEFENSE TECH
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