Balance testing method for inertial platform of platform type inertial navigation system

Abstract

The invention belongs to testing technologies for an inertial platform of a platform type inertial navigation system, and relates to a balance testing method for a ring stand of the inertial platform of the platform type inertial navigation system. An oscilloscope is connected between a one-time frequency wave trap and a correction stage on a servo loop plate in the platform type inertial navigation system; output signals of the one-time frequency wave trap in an azimuth channel, an internal rolling channel and a pitching channel are respectively connected to three channels of the oscilloscope; the inertial navigation system is mounted on a double-shaft manual rotary table, is electrified and begins to work; after the inertial navigation system gets into a navigation state, the course andthe attitude of the rotary table are rotated, so the course and an attitude angle of the inertial navigation system are changed; and right now, signals collected by the three channels of the oscilloscope are observed; and if the wave form amplitude difference is smaller than 80mv, the ring stand of the inertial platform is balanced. The invention provides the positioning and testing method which has the advantages that with the help of faults and problems occurring when the inertial platform is debugged and used, the specific reason and the solving direction of the faults are found out through a new testing method, the system self does not need to be altered, and the problem of unbalance of the three ring stand in the inertial platform is solved.

Description

technical field [0001] The invention belongs to the inertial platform test technology of the platform type inertial navigation system, and relates to the improvement of the ring frame balance test method of the inertial platform of the platform type inertial navigation system. Background technique [0002] Due to the frequent occurrence of the unbalance of the three rings in the platform inertial navigation platform, various failure phenomena of the inertial navigation system occur. Especially in solving the frequent faults of turning course and jumping steps, by detecting the output signal of the 1-fold frequency notch filter of the system, the problem of unbalanced detection and positioning of the three rings in the inertial platform is solved. [0003] The original method of testing the balance of the three rings in the platform is to use manual hanging weights without adding control signals, and use the naked eye to observe whether the platform ring frame is balanced. T...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the invention is to: improve two problems existing in the test method of the three-ring balance in the platform type inertial navigation system platform, locate and solve the unbalance problem of the inertial platform, and propose a platform balance test for the platform type inertial navigation system method

[0009] The advantages of the present invention are: with the help of the fault problems that occur during debugging and use of the inertial platform system, the specific cause of the fault and the solution direction can be found out through the new test method, and the problem of unbalance of the three rings in the inertial platform is solved without changing the system itself. The positioning and testing method improves the speed and accuracy of solving the unbalanced problem of the inertial navigation system platform, reduces the number of times personnel repeatedly check the platform balance, reduces the damage rate of core components, and saves the maintenance time and cost of the system

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