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Application method of composite film in axisymmetric shell harmonic oscillator

A technology of composite film and application method, which is applied in the field of gyroscopes, can solve problems such as circuit short circuit, film electrode failure, weak adsorption force, etc., and achieve the effects of improving zero bias stability, good film stability, and strong binding ability

Pending Publication Date: 2022-07-22
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] (1) The bonding force between graphene and fused silica material is not strong, especially the uniformity of direct plating on special-shaped curved surfaces such as spherical surfaces is not good, and the adsorption force is not strong. The process has been proved to be unfeasible
[0007] (2) The surface resistance of simple graphene is relatively large, and when it is directly plated, its advantages are not obvious compared with metal thin films
[0008] (3) When the resonator is working, under the high-frequency vibration of 10KHz, the simple graphene is easy to fall off, causing the thin-film electrode to fail, and even causing a short circuit and damaging the gyroscope.
[0012] Silver nanowires have high electrical conductivity and good bending resistance, but silver nanowire materials will be oxidized when exposed to air for a long time, and silver nanowires with silver oxide attached to the surface will significantly reduce the conductivity of the film.

Method used

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  • Application method of composite film in axisymmetric shell harmonic oscillator
  • Application method of composite film in axisymmetric shell harmonic oscillator
  • Application method of composite film in axisymmetric shell harmonic oscillator

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.

[0031] see Figure 7 As shown, this embodiment discloses an application method of a composite film in an axially symmetric shell resonator, where the axially symmetric shell resonator includes a cylindrical shell resonator and a hemispherical shell resonator.

[0032] In this embodiment, the cylindrical shell resonator is an integrated structure processed from high-purity quartz material, such as Figure 5 As shown, the cylindrical shell resonator includes a chassis hole 11, a chassis 12, a vibration-guiding ring 13, a resonant ring 14 and a central support column 15. The inner surface of the cylindrical shell resonator and the lower lip of the ...

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Abstract

The invention discloses an application method of a composite film in an axisymmetric shell harmonic oscillator. The axisymmetric shell harmonic oscillator comprises a cylindrical shell harmonic oscillator and a hemispherical shell harmonic oscillator. The inner surface of the cylindrical shell harmonic oscillator and the lower lip edge part of the resonant ring are plated with first metal nanowires and graphene film electrodes; and second metal nanowires and graphene film electrodes are plated on the inner surface of the hemispherical shell harmonic oscillator and the lower lip edge part of the hemispherical shell. The method has the advantages that the thickness is smaller (the thickness of a single layer is smaller than 10 nm), the conductivity is high, the Q value of the harmonic oscillator coated with the film is remarkably improved under the condition that the conductivity of the film is not affected, and higher gyro precision can be obtained.

Description

technical field [0001] The invention relates to the technical field of gyroscopes, and more particularly, to an application method of a composite film in an axisymmetric shell resonator. Background technique [0002] Gyroscope is a sensor that detects the angular motion of inertial space objects and is a key component of inertial navigation. Its performance indicators directly determine the technical indicators of inertial navigation systems. Coriolis Vibratory Gyroscope, also known as Resonant Gyroscope, is mainly divided into Cylindrical Resonator Gyroscope and Hemispherical Resonator Gyroscope. It consists of three parts: module and vacuum packaged shell. The high-speed rotation of the rotor is replaced by the standing wave precession generated when the resonator vibrates inside the gyroscope, thereby avoiding mechanical friction and reducing the drift error fundamentally. Cylindrical resonant gyroscopes and hemispherical resonant gyroscopes have comprehensive advantage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/02H01B1/02H01B1/04H01B5/14H01B13/00C01B32/194
CPCH01B5/02H01B5/14H01B1/04H01B1/02H01B13/0026C01B32/194
Inventor 罗一鸣杨开勇潘瑶曾黎斌贾永雷刘贱平谭中奇罗晖
Owner NAT UNIV OF DEFENSE TECH
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