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Article

Research on Micro-Vibration Analysis of Segmented Telescope Based on Opto-Mechanical Integration

by
Kangmin Wen
1,2,3,
Lingjie Wang
1,3,*,
Xuefeng Zeng
1,3,
Yang Liu
1,3,
Wenyan Li
1,3,
Lianqiang Wang
1,3,
Wei Sha
1 and
Di Zhou
1,3
1
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
State Key Laboratory of Advanced Manufacturing for Optical Systems, Changchun 130033, China
*
Author to whom correspondence should be addressed.
Sensors 2025, 25(6), 1901; https://doi.org/10.3390/s25061901
Submission received: 24 January 2025 / Revised: 10 March 2025 / Accepted: 14 March 2025 / Published: 19 March 2025
(This article belongs to the Special Issue Sensors Technologies for Measurements and Signal Processing)
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Abstract

Aiming at the inherent nature and complexity of the influence of in-orbit micro-vibration in the imaging quality of segmented telescopes, a dynamic full-link opto-mechanical integration analysis method is proposed. The method is based on the measured micro-vibration signals of the infrared refrigerator, using the finite element method to perform the transient response analysis of the opto-mechanical system in Patran/Nastran software. The interface tool is written by Matlab to achieve the calculation of rigid body displacement and real-time data interaction with Zemax. The results show that when the working wavelength is 1 μm, the optical system has a wavefront error Root-Mean-Square value of less than 0.071λ in 4 s. Evaluating the effect of micro-vibration on the imaging quality of the system in terms of the peak ratio of the point spread function. When the exposure time was 2 s, the ratio maximum values of 0.4628 and 0.6207 were reached for the X-axis and Y-axis, respectively. The method provides an important reference basis for the evaluation of imaging quality of an optical system under micro-vibration environment with a long exposure time.
Keywords: segmented telescope; micro-vibration; opto-mechanical integration analysis; wavefront error segmented telescope; micro-vibration; opto-mechanical integration analysis; wavefront error

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MDPI and ACS Style

Wen, K.; Wang, L.; Zeng, X.; Liu, Y.; Li, W.; Wang, L.; Sha, W.; Zhou, D. Research on Micro-Vibration Analysis of Segmented Telescope Based on Opto-Mechanical Integration. Sensors 2025, 25, 1901. https://doi.org/10.3390/s25061901

AMA Style

Wen K, Wang L, Zeng X, Liu Y, Li W, Wang L, Sha W, Zhou D. Research on Micro-Vibration Analysis of Segmented Telescope Based on Opto-Mechanical Integration. Sensors. 2025; 25(6):1901. https://doi.org/10.3390/s25061901

Chicago/Turabian Style

Wen, Kangmin, Lingjie Wang, Xuefeng Zeng, Yang Liu, Wenyan Li, Lianqiang Wang, Wei Sha, and Di Zhou. 2025. "Research on Micro-Vibration Analysis of Segmented Telescope Based on Opto-Mechanical Integration" Sensors 25, no. 6: 1901. https://doi.org/10.3390/s25061901

APA Style

Wen, K., Wang, L., Zeng, X., Liu, Y., Li, W., Wang, L., Sha, W., & Zhou, D. (2025). Research on Micro-Vibration Analysis of Segmented Telescope Based on Opto-Mechanical Integration. Sensors, 25(6), 1901. https://doi.org/10.3390/s25061901

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