Design of double-sided fast steering mirror based on piezoelectric actuating

Sheng, 宋盛 Song; Chong-fei, 刘重飞 Liu; Zi-yong, 苑自勇 Yuan; Wei-ming, 徐卫明 Xu; Rong, 舒嵘 Shu

doi:10.3788/ope.20162411.2777

Cited by 2 publications

(2 citation statements)

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“…Substituting P=136.53N into formula (6), it can be seen that the bearing life was sufficient due to C >> P.…”

Section: Bearing Design Analysismentioning

confidence: 99%

“…In 2015, GANG Yuan et al completed the development of a large angle piezoelectric fast control mirror consisting of a reflective mirror, a flexible hinge connecting rod, a mirror holder, a bridge displacement amplification mechanism, a PCSA and a ball head gasket [5]. SHENG Song et al designed a displacement-amplified piezoelectric ceramic-driven double-sided fast steering mirror in 2016 [6]. In 2018, CHEN Chaoshuai carried out the research and implementation of fast scan imaging motion compensation technology for infrared area-array search system [7].…”

Section: Introductionmentioning

confidence: 99%

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

Zhou,

DING,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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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.

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“…Substituting P=136.53N into formula (6), it can be seen that the bearing life was sufficient due to C >> P.…”

Section: Bearing Design Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Zhou,

DING,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

View full text Add to dashboard Cite

show abstract

Study of the image motion compensation method for a vertical orbit dynamic scanning TDICCD space camera

Zhang,

Xu,

Liu

et al. 2023

Opt. Express

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In this study, a collaborative compensation method for low-dimensional attitude maneuvering and time delay integration charge-coupled device (TDICCD) line-frequency matching is proposed. The method is combined with the validation and analysis of the coordinate system transformation model to address the mismatch between the TDI charge transfer speed and the speed of the target. This mismatch is caused by the inconsistency between the rotational scanning direction of the double-sided mirror used for dynamic vertical orbit scanning imaging in low Earth-orbit satellites and the direction of the satellite along its orbit. The image motion per unit exposure time is decreased from 0.619µm to 0.023µm compared with the uncompensated maneuver mode, and the image quality is noticeably higher.

show abstract

Design of double-sided fast steering mirror based on piezoelectric actuating

Cited by 2 publications

References 0 publications

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

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

Study of the image motion compensation method for a vertical orbit dynamic scanning TDICCD space camera

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