Mr. Yajun Zhang Profile

Yajun Zhang

at NIAOT

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 7 August 2010 Paper

An indoor three-mirror phasing experiment system based on a dispersed Hartmann type sensor

Xiangqun Cui, Yizhong Zeng, Yeping Li, Genrong Liu, Yuefei Wang, Liang Zhang, Yong Zhang, Yajun Zhang

Proceedings Volume 7733, 773352 (2010) https://doi.org/10.1117/12.856751

KEYWORDS: Sensors, Mirrors, Segmented mirrors, Active optics, Large telescopes, Telescopes, Calibration, Optics manufacturing, Wavefronts, Astronomical imaging

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Proceedings Article | 7 August 2010 Paper

Development of automated small telescopes as Dome A site testing DIMM

Yajun Zhang, Bozhong Gu, Daxing Wang, Chong Pei, Hualin Chen, Xiangyan Yuan, Jianlin Zhao

Proceedings Volume 7733, 77334W (2010) https://doi.org/10.1117/12.856762

KEYWORDS: Telescopes, CCD cameras, Data processing, Astronomy, Stars, Scintillation, Control systems, Charge-coupled devices, Signal attenuation, Space telescopes

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Proceedings Article | 6 August 2010 Paper

Progress of Antarctic Schmidt Telescopes (AST3) for Dome A

Haikun Wen, Ru Zhang, Xiangqun Cui, Zhengqiu Yao, Daxing Wang, Fang Zhou, Xinnan Li, Xiangyan Yuan, Zhaohui Shang, Lingzhe Xu, Xuefei Gong, Yajun Zhang, LongLong Feng, Lifan Wang

Proceedings Volume 7733, 77331V (2010) https://doi.org/10.1117/12.856671

KEYWORDS: Telescopes, Domes, Astronomy, Mirrors, Astronomical telescopes, Image quality, Astronomical imaging, Control systems, Charge-coupled devices, Observatories

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Proceedings Article | 5 August 2010 Paper

Control system of a dispersed fringe type sensing system of active optics

Yong Zhang, Yajun Zhang, Zhenchao Zhang

Proceedings Volume 7736, 77364Q (2010) https://doi.org/10.1117/12.856342

KEYWORDS: Actuators, Control systems, Optical fibers, Mirrors, Active optics, Sensors, Segmented mirrors, Control systems design, Astronomy, Telescopes

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Proceedings Article | 18 July 2008 Paper

A type of displacement actuator applied on LAMOST

Yajun Zhang, Yongjun Qi

Proceedings Volume 7019, 701928 (2008) https://doi.org/10.1117/12.786585

KEYWORDS: Actuators, Mirrors, Active optics, Astronomical telescopes, Zoom lenses, Interferometers, Telescopes, Analytical research, Temperature metrology, Mirror pointing

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