Structure and method for detecting position of inertia axis of defective quartz hemispherical shell

A hemispherical shell and inertial axis technology, which is used in measurement devices, surveying and navigation, and gyroscopic effect for speed measurement, etc.

Pending Publication Date: 2020-11-24
张家欧 +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] 1. It is only suitable for special cases where the spring force and damping force are parallel to each other, and the practicability is too low
[0010] 2. The det...

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  • Structure and method for detecting position of inertia axis of defective quartz hemispherical shell
  • Structure and method for detecting position of inertia axis of defective quartz hemispherical shell
  • Structure and method for detecting position of inertia axis of defective quartz hemispherical shell

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Embodiment Construction

[0033] In order to achieve the above purpose and effects, the technical means and structures adopted by the present invention are described in detail with reference to the preferred embodiments of the present invention through the accompanying drawings. The features and functions are as follows for complete understanding.

[0034] see Figures 3 to 7 Shown, can clearly find out that the present invention comprises from the figure:

[0035] The hemispherical shell 1 has at least one defect state, and the hemispherical shell 1 is made of fused quartz (fused quartz) material;

[0036] a central support column 11 arranged on the hemispherical shell 1;

[0037] At least one sensing element 2 arranged on one side of the hemispherical shell 1 senses its branch frequency (ω H = ω 1 , ω L = ω 2 ), the sensing component 2 has a first electrode sensing sheet 221 whose position corresponds to the first electrode excitation sheet 31 described below, and a second electrode sensing shee...

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Abstract

The invention relates to a structure and a method for detecting the position of an inertia axis of a defective quartz hemispherical shell. A central supporting column of a hemispherical shell is locally arranged behind a central hole combining part of a sensing assembly, the divergence frequency of the hemispherical shell is swept and detected by matching with the electrode base and the sensing assembly, an alternating current is input to enable the hemispherical shell to generate resonance, a constant voltage is transmitted to the side edge of the opening of the hemispherical shell from the first electrode excitation sheet and the second electrode excitation sheet which are separated by 45 degrees, the hemispherical shell generates a first displacement amount and a second displacement amount, two solutions of a low-frequency inertia axis angle are calculated through the calculation module, then, the electrode base is rotated once, and the actions are repeated, the intersection of theinertia axis angles calculated by the calculation module twice is taken to obtain a unique solution, and finally, a low-frequency inertia axis and an imaginary vertical line which are perpendicular toeach other are marked by utilizing an inertia axis angle, and four mass removal positions representing mass ablation positioning points of the spherical shell are defined at the intersection point position of the bottom of the opening of the hemispherical shell so as to fulfill the aim of eliminating the frequency difference of the hemispherical shell.

Description

technical field [0001] The invention relates to a structure and method for detecting the position of the inertial axis of a defective quartz hemispherical shell, in particular to a detection flawed quartz that can cooperate with a calculation module and simply pass two detection actions to calculate the precise position of the hemispherical shell to remove the mass point The structure and method of the position of the inertial axis of the hemispherical shell. Background technique [0002] Hemispherical Resonant Gyroscope (HRG) is a bending-mode standing wave based on a hemispherical shell, which becomes a precession traveling wave due to the Coriolis force. wave) effect to sense the base rotation of a Gothic vibrating top. It has high measurement accuracy, strong stability, high reliability, good shock and vibration resistance, excellent temperature performance, and unique shutdown radiation resistance. It is a satellite, submarine navigation, tactical missile navigation, o...

Claims

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Application Information

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IPC IPC(8): G01C19/5684G01C25/00
CPCG01C19/5684G01C25/005
Inventor 张家欧常中坚
Owner 张家欧
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