Leveling method for multi-shaft support air-floating platform based on capacitive sensors

Abstract

The invention discloses a leveling method for a multi-shaft support air-floating platform based on capacitive sensors and belongs to the optical field. The method is used for solving the problems that the current method for adjusting a support air-floating platform is high in requirement on a measurement environment, is far limited during application, and is incapable of realizing high regulation precision and low complexity in regulation process at the same time. The specific procedures of the leveling method are as follows: three air feet are inflated with high pressure gas from the bottom by an air source, so as to form a gas film face; gas film heights of the three feet are collected respectively by three capacitive sensors; the collected gas film heights are output into a controller respectively by the three capacitive sensors; the controller calculates controlled quantity by adopting a neural network PID control algorithm; the controlled quantity controls pressure regulating valves of the three air feet after decoupling, so as to change the outlet pressure of the three air feet, regulate the air film heights and finish the leveling process. The leveling method is applied to satellite ground simulation.

Description

technical field [0001] The invention relates to a leveling method for a multi-axis supported air bearing platform. Background technique [0002] The multi-axis air bearing platform is an important device for satellite ground simulation, which is used to simulate the microgravity and micro damping environment in space. The air-floating platform relies on the air film support formed by compressed air on the air bearing to achieve micro-friction and micro-damping motion. [0003] In the multi-axis air bearing simulation technology, accurate leveling of the air bearing is a crucial core link. Aiming at the problem of static imbalance when the center of gravity drifts relative to the center of rotation, and the dynamic imbalance of the main inertial axis relative to the rotary axis, first use manual leveling, and then use automatic leveling to adjust the balance of the air bearing table. Through effective testing means to test the levelness of the air bearing platform, etc., it...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing adjustment method for the air-floating platform has high requirements on the measurement environment, has relatively large application limitations, and cannot simultaneously achieve high adjustment accuracy and low complexity of the adjustment process, and provides a capacitive sensor-based Leveling method of multi-axis supported air bearing platform

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