Detection and Calibration Method for Adjustment Components of Large Field of View Active Optical Telescopes

AN Qichang; WU Xiaoxia; ZHANG Jingxu; LI Hongwen

doi:10.12338/j.issn.2096-9015.2023.0260

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AN Qichang, WU Xiaoxia, ZHANG Jingxu, LI Hongwen. Detection and Calibration Method for Adjustment Components of Large Field of View Active Optical Telescopes[J]. Metrology Science and Technology. doi: 10.12338/j.issn.2096-9015.2023.0260

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AN Qichang, WU Xiaoxia, ZHANG Jingxu, LI Hongwen. Detection and Calibration Method for Adjustment Components of Large Field of View Active Optical Telescopes[J]. Metrology Science and Technology. doi: 10.12338/j.issn.2096-9015.2023.0260

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Detection and Calibration Method for Adjustment Components of Large Field of View Active Optical Telescopes

doi: 10.12338/j.issn.2096-9015.2023.0260

AN Qichang^{1, 2, 3
,},
WU Xiaoxia^{1, 2, 3},
ZHANG Jingxu^{1, 2, 3},
LI Hongwen^{1, 2, 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 100039, China
3.
Jilin Provincial Key Laboratory of Intelligent Wavefront Sensing and Control, Changchun130033, China

Received Date: 2023-11-05
Accepted Date: 2023-12-22
Rev Recd Date: 2023-12-22

Available Online: 2024-04-19

Abstract

Abstract

To better control large field of view active optical telescopes, this paper explains the basic principles of detecting and calibrating the adjustment components in telescopes based on internal and external measurement systems. Error analysis is performed on the calibration process of large field of view active optical telescopes, and the principle of the detection method for motion components of large field of view active optical telescopes is demonstrated through desktop experiments. Non-diffractive uniform beam splitting is achieved, overcoming the disadvantages of diffractive beam splitting, such as multiple stray fringes and small splitting angles. The dispersion angle is higher than 100°, with an accuracy better than 15 µm and an angular accuracy better than 3″. The calibration accuracy based on wavefront sensing is better than 10 µm, which can effectively improve the calibration accuracy of the adjustment elements of large-aperture, large field of view telescopes and ultimately enhance the imaging quality of the telescopes.
- metrology,
- curvature sensing,
- wavefront aberration,
- large field of view active optics,
- large-aperture telescope

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References(30)

References

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