Harmonic oscillator and electrode fixed connection method suitable for high-vacuum environment

A resonator, high vacuum technology, used in instruments, gyroscopic effects for velocity measurement, surveying and navigation, etc., can solve the problem of no structural connection and fixation patent and other problems, avoid oxidation and a large amount of inhalation, is conducive to vacuum performance, Effects of low outgassing vacuum performance

Active Publication Date: 2020-10-30
TIANJIN NAVIGATION INSTR RES INST
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[0005] Through the patent search, there is no relevant patent for th

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  • Harmonic oscillator and electrode fixed connection method suitable for high-vacuum environment
  • Harmonic oscillator and electrode fixed connection method suitable for high-vacuum environment

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[0022] The present invention will be described in further detail below with reference to the drawings and specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0023] A fixed connection method of resonator and electrode suitable for high vacuum environment, see figure 1 and 2 , its invention point is: comprising the following steps:

[0024] Step 1. Process the resonator part 1 and the electrode part 2: the diameter of the center hole of the electrode part is larger than the diameter of the center rod of the resonator part, and there is a matching gap between the two. The preferred matching gap size is: 0.1±0.02mm , and make a chamfered surface on the center hole of the electrode part;

[0025] Step 2: Clean the resonator parts and the electrode parts to remove the grease on the surface of the parts; the cleaning is preferably realized by multiple steps of rough washing, degreasing a...

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Abstract

The invention relates to a harmonic oscillator and electrode fixed connection method suitable for a high vacuum environment. The method comprises the following steps that: 1, a harmonic oscillator part and an electrode part are processed and manufactured, the diameter of an electrode part center hole is larger than that of a harmonic oscillator part center rod, and a fit clearance is reserved between the electrode part center hole and the harmonic oscillator part center rod, and a chamfer surface is manufactured on the upper end opening of the electrode part center hole; 2, cleaning is performed so as to remove grease on the surface of the parts; 3, vacuum pre-exhausting treatment is performed; 4, assembling is performed, and electric zero setting is performed, an indium wire is arranged into the chamfer at the upper end of the electrode central hole before electric zero setting, silica gel is applied to the gap below the electrode after the zero setting, and the silica gel is solidified to form a silica gel sealing ring; and 5, after the silica gel is solidified, the assembly of the electrode and the oscillator, together with an adjusting fixture, is arranged into a vacuum furnace, and heating, insulating and cooling are sequentially performed to fill the fit clearance between the electrode and the oscillator with indium so as to realize the fixed connection of the electrode and the oscillator. According to the method of the invention, the reliable fixed connection of the harmonic oscillator and the electrode is realized, and the prepared assembly structure meets the high-vacuum use environment.

Description

technical field [0001] The invention belongs to the technical field of production and manufacture of gyroscopes, and in particular relates to a fixed connection method of a resonator and an electrode suitable for a high vacuum environment. Background technique [0002] The resonant gyroscope is the core element in the inertial navigation system. The working principle of the resonant gyroscope is to use the spherical shell resonance characteristics of the resonant gyroscope. The spherical shell is excited to resonate, and the angular motion of the carrier will affect the position of the resonant wave waveform. The carrier rotation information can be obtained by detecting the resonant wave position. Therefore, the accuracy of the resonant element resonator of the resonant gyroscope directly determines the accuracy of the gyroscope and the inertial navigation system. The resonance frequency of the resonant gyroscope is generally several kilohertz. Such high-frequency physical ...

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Application Information

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IPC IPC(8): G01C19/5663G01C19/5656
CPCG01C19/5663G01C19/5656
Inventor 程雷杨纪东贾立民于金洽于涵
Owner TIANJIN NAVIGATION INSTR RES INST
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