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

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

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

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

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

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

Yajun Zhang, Zhenchao Zhang, Yong 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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