An anti-shock angular velocity gyroscope

Abstract

The invention discloses an angular speed gyro, and concretely relates to an impact resisting angular speed gyro. The purpose of the invention is to provide the angular speed gyro having extremely good impact resistance and being suitable for being used in high-impact vibration environment. The impact resisting angular speed gyro comprises a gyro shell and a PCA plate, and the surface of the PCA plate is provided with a gyro element; the gyro element is completely embedded through an epoxy resin adhesive to make the gyro element and the PCA plate be fixed together in order to form a PCA module; and the PCA module is embedded in the gyro shell, and the PCA module is completely embedded in the gyro shell by using silica gel.

Description

technical field [0001] The invention relates to an angular velocity top. Background technique [0002] At present, the more advanced gyroscopes in the world are fiber optic gyroscopes and MEMS gyroscopes. [0003] 1. Fiber optic gyroscope [0004] The fiber optic gyroscope is based on the Sagnac effect. Two beams of light with equal characteristics emitted from the same light source in the same closed optical path propagate in opposite directions and finally converge to the same detection point. The fiber optic gyroscope has the following characteristics: ① few parts, no mechanical transmission parts, no wear and tear, and a long service life; ② easy to use integrated optical technology, stable signal, and can be directly output digitally, and connected to the computer interface . However, the fiber optic gyroscope still has the following defects in technology: ①Poor vibration resistance, the impact resistance of the fiber optic gyroscope is generally about 100g, vibratio...

AI Technical Summary

Problems solved by technology

However, the fiber optic gyroscope still has the following defects in technology: ①Poor vibration resistance, the impact resistance of the fiber optic gyroscope is generally about 100g, vibration and shock will affect its measurement accuracy, thus limiting the wide application; ②Temperature instantaneous The influence of the state, experiments have shown that the phase error of the fiber optic gyroscope and the drift of the rotation rate measurement are proportional to the time derivative of the temperature, which is very harmful, especially during the warm-up period

③The production process is very complicated, and the production yield is low, which makes the production cost very high and the product price is very expensive; the above defects have affected the popularization and application of fiber optic gyroscopes in various domestic fields

However, in some high shock and vibration environments, the existing MEMS angular velocity gyroscopes still cannot meet the requirements

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