Stabilization platform movement ring eccentric torque measuring method

Abstract

The invention discloses a stabilization platform movement ring eccentric torque measuring method. According to the method, at one side of a movement ring rotation shaft, a forcemeter is adopted to apply a pull force along a vertical upward direction and slowly increase the pull force, and the reading of the forcemeter is recorded when the movement ring rotation shaft rotates; at the other side of the movement ring rotation shaft, the forcemeter is adopted to apply a pull force along a vertical upward direction and slowly increase the pull force, and the reading of the forcemeter is recorded when the movement ring rotation shaft rotates; and mechanical equilibrium equations of the two times of rotation of the ring rotation shaft are listed according to torque balance principles, and the mechanical equilibrium equation set is solved, so that eccentric torque can be obtained. According to the method of the invention, the torque balance principles are adopted, and a strain gauge and a processing circuit are not required. The method has the advantages of convenient operation and simple calculation process.

Description

technical field [0001] The invention relates to the technical field of stable platform testing, in particular to a method for measuring eccentric moment of a moving ring of a stable platform. Background technique [0002] At present, a typical stable platform is composed of a platform frame, a torque motor, an angle sensor, a rate gyro, a servo control system circuit, and a load. In order to meet the control requirements of the servo system, the structure needs to be counterweighted to the eccentricity of the motion ring. The size of the eccentric torque of the motion ring will directly affect the selection of the torque motor and the design of the servo control system. Especially in the case of heavy load, the weight and static friction torque of the motion ring will be further increased after the weight is counterweighted. Under the premise of a certain output torque of the torque motor, The smaller the eccentric moment of the moving ring, the easier the design of the serv...

AI Technical Summary

Problems solved by technology

The principle of the measurement method is complicated and the operation is cumbersome. It is necessary to paste the strain gauge on the measured piece, and the sticking of the strain gauge is very demanding. Improper sticking will cause problems such as zero drift and creep. After the strain gauge is pasted, it is necessary to check whether there is any Bubbles, warping and degumming, measuring whether there are short circuits, open circuits and sudden changes in resistance

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