Camera shutter micro-vibration physical simulation testing processing system and testing method thereof

Abstract

The invention discloses a camera shutter micro-vibration physical simulation testing processing system and a testing method of the camera shutter micro-vibration physical simulation testing processing system. The camera shutter micro-vibration physical simulation testing processing system is composed of a data collecting system, a six-component eight-sensor vibration-disturbance force testing table, an adapter plate, an acceleration sensor, a camera shutter device, a controller of the camera shutter device and a display. The camera shutter device is installed on the ix-component eight-sensor vibration-disturbance force testing table through the adapter plate, and meanwhile the acceleration sensor is arranged on a camera shutter according to testing requirements. When the camera shutter works, small disturbance is generated on the six-component eight-sensor vibration-disturbance force testing table. The data collecting system collects signals of eight sensors of the six-component eight-sensor vibration-disturbance force testing table and obtains vibration-disturbance force through a series of calculation, and meanwhile the data collecting system collects signals of the acceleration sensor to obtain acceleration.

Description

technical field [0001] The invention relates to a camera shutter micro-vibration testing method, which can be used for dynamic measurement of the vibration signals of the micro-disturbance load of the spacecraft camera shutter device on six degrees of freedom. Background technique [0002] The camera shutter is the main component of satellite imaging, used to control the length of exposure time. Due to mass imbalance, bearing manufacturing defects, and motor noise, the shutter produces periodic and broadband micro-disturbance forces on the stars. These disturbance forces are modulated and amplified by their internal dynamic characteristics, and will affect remote sensing satellites (GF-4) The pointing accuracy and stability of the optical path have a great influence. This effect is particularly important considering that the shutter device is installed near the imaging device. There are many factors to be considered when establishing the shutter disturbance model, such as ...

AI Technical Summary

Problems solved by technology

There are many factors that need to be considered when establishing the shutter disturbance model, such as the rotational speed, bearing collision harmonics and the dynamic characteristics of its internal structure, and the influence of the dynamic characteristics of the installation structure, which makes the establishment, calibration and inspection of the model quite difficult.

Images