Three-dimensional sensitive structure element with multi-curved-surface fusion and vibratory gyroscope comprising same

A multi-surface fusion, sensitive structure technology, applied in the field of three-dimensional multi-surface fusion sensitive structure vibrating gyroscope, can solve the problems of low quality factor, poor anti-overload capability, etc., to improve the signal-to-noise ratio, high anti-overload capability, avoid stress effect of concentration

Active Publication Date: 2015-03-04
BEIJING INFORMATION SCI & TECH UNIV +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a simple structure, easy processing, strong anti-high overload capacity, high-quality A three-dimensional multi-surface fusion sensitive structure with a high factor, and a solid-state vibrating gyroscope with high precision and sensitivity and a large range

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  • Three-dimensional sensitive structure element with multi-curved-surface fusion and vibratory gyroscope comprising same
  • Three-dimensional sensitive structure element with multi-curved-surface fusion and vibratory gyroscope comprising same
  • Three-dimensional sensitive structure element with multi-curved-surface fusion and vibratory gyroscope comprising same

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Embodiment Construction

[0032]The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, the core part of the three-dimensional multi-curved surface fusion sensitive structural element of the present invention includes a three-dimensional sensitive structure (1), a piezoelectric electrode (2), a supporting axis (3), a base (4) and a casing (5). According to the characteristics of the actual use environment, the three-dimensional sensitive structure (1) is integrally processed with a constant elastic alloy material, and its main material properties are: density ρ =8170 g / cm 3 ,Poisson's ratio mu =0.3, Young's modulus E =196.76Gpa, tensile strength σ b =500Mpa, yield strength σ s =275MPa. further, such as figure 2 As shown, the optimized parameters of the three-dimensional sensitive structure (1) obtained after the finite element simulation design are: the radius of the hemispherical surfa...

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Abstract

The invention discloses a three-dimensional sensitive structure element with multi-curved-surface fusion and a vibratory gyroscope comprising the same. The three-dimensional sensitive structure element comprises a three-dimensional sensitive structure (1), piezoelectric electrodes (2), a supporting middle shaft (3), a base (4) and a shell (5), wherein the three-dimensional sensitive structure (1) is wholly processed and integrally formed by adopting constant-elastic alloy material (Ni43CrTi), forms a Psi-shaped resonance structure with the supporting middle shaft (3) and fixed onto the base (4) through a mechanical means; the piezoelectric electrodes (2) are attached onto the outer surface of the three-dimensional sensitive structure (1). The three-dimensional sensitive structure element disclosed by the invention is designed by structure optimization and has the characteristic of multi-curved-surface fusion, and has high quality factor and overload resistance, and the solid vibratory gyroscope formed by the element can applied to direct measurement of the angular rate of a carrier under the high-dynamic environment of high speed, high rotation, high overload and the like.

Description

technical field [0001] The invention relates to the technical field of solid-state vibrating gyroscopes, in particular to a three-dimensional multi-curved surface fusion sensitive structural vibrating gyroscope. Background technique [0002] The solid-state vibrating gyroscope is a kind of gyroscope based on the principle of Coriolis effect. The longitudinal standing wave generated in the resonant shell by the excited vibration is used to precess the mode shape relative to the shell due to the Coriolis effect when the substrate rotates, so as to sensitive angle Movement measurement. This gyroscope has outstanding advantages such as small size, low energy consumption, simple structure of mechanical parts, strong resistance to impact and overload, and low cost, and has broad application prospects. [0003] The existing solid-state vibration gyroscopes mainly include MEMS gyroscopes and resonant shell-type three-dimensional sensitive structure vibration gyroscopes. The sensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/5705
CPCG01C19/5705
Inventor 苏中马晓飞付梦印邓志红付国栋
Owner BEIJING INFORMATION SCI & TECH UNIV
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