An integrated spatial precision two-dimensional scanning mechanism

Abstract

The invention discloses a precise and two-dimensional scanning mechanism with integrated space, comprising a rail-crossing scanning mechanism and a rail-along scanning mechanism, wherein the rail-crossing scanning mechanism comprises a scanning mirror, a front shell of the scanning mechanism,a middle end cover of the scanning mechanism, a rotary motor, an angular displacement sensor, a rotary shaft, a bearing assembly, a linear motion shaft,a front hinge assembly, a rear hinge assembly, a front hinge assembly support,a rear hinge assembly support and a seal ring; and the rail-along scanning mechanism comprises a scanning mirror, a linear motor, a linear motion shaft, a rear shell of the scanning mechanism, a rotary shaft, a front hinge assembly, a rear hinge assembly, a front hinge assembly support, a rear hinge assembly support, a seal cover of the linear motor, a front limiting device and a rear limiting device. The advantages of the invention are as follows: compared with the traditional two-dimensional scanning mechanism, the two-dimensional scanning mechanism has the features of integration, light-small type, high pointing precision, low assembly difficulty, etc. One dimension can rotate around 360 degrees, the rotary angle of the other dimension can be confirmed by the limiting device, and the rail-crossing scanning and rail-along scanning are alternative.

Description

technical field [0001] The invention relates to a space two-dimensional scanning mechanism, in particular to an integrated precision two-dimensional scanning mechanism for space photoelectric remote sensing instruments, belonging to the field of aerospace technology. Background technique [0002] Space remote sensing instruments have extremely important uses in space research, earth observation, weather forecasting, and national defense modernization. They are an important means for human beings to develop and utilize space resources, and are the core technology for the development of space payload applications. The FY-1 and FY-3 meteorological satellites of the Fengyun series launched by my country use satellite flight + one-dimensional scanning, and FY-2 uses satellite spin + one-dimensional scanning. The scanning radiometer, medium-resolution spectral imager, infrared spectrometer and other loads on the FY-3 satellite use a 45° scanning mirror to rotate and scan, and the ...

AI Technical Summary

Problems solved by technology

[0004] It is common to use dual motor drive to realize the two-dimensional scanning structure. The advantage is that it has good adaptability and can meet the requirements of two-dimensional large-angle scanning. The disadvantage is that the volume and power consumption are large, and it cannot meet the mechanical interface requirements of the hyperspectral detector.

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