Laser gyroscope working point recovery system and method

Abstract

The invention belongs to a laser gyroscope space application technology and particularly relates to a novel laser gyroscope working point recovery system and method. The laser gyroscope working point recovery system comprises one or a plurality of phototubes, current / voltage converters, voltage comparers, a digital processing circuit and a laser gyroscope electronic control system, wherein the number of the current / voltage converters are the same as that of the phototubes, the current / voltage converters correspond to the phototubes in a one-to-one mode, the number of the voltage comparers is the same as that of the current / voltage converters, the voltage comparers correspond to the current / voltage converters in a one-to-one mode, and the one or a plurality of the phototubes are attached to a laser gyroscope and sequentially connected with the current / voltage converter, the voltage comparers, the digital processing circuit and the laser gyroscope electronic control system. The laser gyroscope working point recovery system disclosed by the invention can effectively monitor space irradiation occurrence situations of the laser gyroscope and can timely recover the laser gyroscope working point, so that working point chaos and even failure caused by space irradiation of the laser gyroscope are avoided, and space environment applicability of the laser gyroscope is improved.

Description

technical field [0001] The invention belongs to the laser gyroscope space application technology, in particular to a novel laser gyroscope radiation detection and working point recovery system and recovery method. Background technique [0002] Laser gyroscope is an ideal component of strapdown inertial navigation system because of its unique advantages of fast start-up, strong shock and vibration resistance, large dynamic range, wide output bandwidth and high reliability. Compared with the wide application in the fields of aviation and navigation, there are not many examples of successful application of laser gyroscopes in aerospace environments. The fundamental reason is that the laser gyroscope cannot adapt to the high-intensity radiation in the aerospace environment. The effects of space radiation on laser gyro can be divided into three categories: total dose effect, single event effect and displacement damage effect. Among them, the single event effect refers to a phen...

AI Technical Summary

Problems solved by technology

Because the applicability of the aerospace environment is not considered, when the above-mentioned system is bombarded by high-energy particles in the aerospace environment, its electrical signal will be disordered, which will lead to uncontrollable parameters such as the cavity length and operating current of the gyroscope, causing the gyroscope to fail.

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