Residual moment measuring device and method of inertial device based on three-dimensional air flotation

Abstract

The invention provides a residual moment measuring device and method of an inertial device based on three-dimensional air flotation, belonging to the technical field of detection. An on-stage system and an under-stage system in the device are connected through a wireless transmission system; the under-stage system comprises an under-stage data collecting and processing system, a server, a cabinetbox and an air supply system; the on-stage system comprises a power supply system, an inertial execution mechanism control system, an inertial execution mechanism to-be-tested product, an on-stage data collecting and processing system, a residual moment test system, a vibration isolating and supporting system, and a vacuum control system, the residual moment test system consists of an air flotation rotary table, a high-precision sensor device and an anti-overturning and protective device, and the high-precision sensor device is separately arranged in a vertical direction of the air flotation rotary table and in a horizontal direction outside the air flotation rotary table. The device can simulate orbit work of a satellite platform, provides a simulated spatial mechanical environment, outputs residual moment in real time, can be used for directly measuring multiple inertial devices, is low in calculation amount, and has high precision.

Description

technical field [0001] The invention relates to a three-dimensional air flotation-based inertial device residual moment measurement device and method, belonging to the technical field of detection. Background technique [0002] With the development of my country's aerospace level, the requirements for the observation accuracy of modern high-level spacecraft for payloads have been greatly improved compared with the past. The research shows that during the working process of the inertial actuator, due to factors such as the inability to completely eliminate the dynamic unbalance, the electromagnetic field and the non-ideal characteristics of the shaft system, there will be a residual moment with a wide frequency distribution. This residual moment is usually small in magnitude, but it will affect the observation accuracy of the payload, and even cause the satellite platform to vibrate. At present, in the test for inertial actuators, there is no means to test the residual momen...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of indirect measurement in the prior art, which is not suitable for other inertial devices and unsatisfactory measurement accuracy, and to provide a three-dimensional air-flotation-based residual moment measurement device and method for inertial devices

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