Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Panwei Zhou; Xuezhuan Ding; Yang Yu; Fanming Li; Xisheng Ye

doi:10.1117/12.2691195

6 November 2023 Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor

Panwei Zhou, Xuezhuan Ding, Yang Yu, Fanming Li, Xisheng Ye

Author Affiliations +

Proceedings Volume 12921, Third International Computing Imaging Conference (CITA 2023); 129212W (2023) https://doi.org/10.1117/12.2691195
Event: Third International Computing Imaging Conference (CITA 2023), 2023, Sydney, Australia

Abstract

According to the image motion generated in search imaging of the area-array search and tracking integrated equipment, this paper designs a high-frequency image motion compensation mechanism based on swing-angle voice coil motor, in which the high-frequency vibration of the compensating mirror is used to compensate the image motion. Based on the advantages of simple structure and control, high-frequency commutation and high-precision, a high-frequency image motion compensation mechanism driven by the swing-angle voice coil motor is proposed. This article analyses the rotary torque of the high-frequency image motion compensation mechanism, designs labyrinth seal for slewing bearing according to the requirements of high and low temperature, the life of bearing is verified by analyzing the equivalent load of bearing. The mechanical analysis of vibrating mirror is carried out by finite element simulation, and the error analysis of the rotating shaft system is also carried out, the maximum position error of image motion compensation is 13.81". The optical compensation aperture of the high-frequency image motion compensation mechanism is 60 mm. When the compensation angle is 0.3°, the frequency of vibration compensation reaches 50 Hz. The seal and mechanical requirements are considered in the structure design, and the high-frequency image motion compensation mechanism is verified by assembly and debugging.

Citation Download Citation

Panwei Zhou, Xuezhuan Ding, Yang Yu, Fanming Li, and Xisheng Ye "Realization of high-frequency image motion compensation mechanism based on swing-angle voice coil motor", Proc. SPIE 12921, Third International Computing Imaging Conference (CITA 2023), 129212W (6 November 2023); https://doi.org/10.1117/12.2691195

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KEYWORDS

Mirrors

Vibration

Error analysis

Finite element methods

Motion analysis

Structural design

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