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Proceedings Paper

Control system of position actuators for segmented mirror active optics in LAMOST
Author(s): Xixia Du; Zhenchao Zhang; Yongjun Qi; Aihua Li
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Paper Abstract

This paper presents an implementation of control system of position actuators in LAMOST. Performance of actuators has been tested in laboratory. The resolution of actuators is less than 5nm. The whole control system has been successfully realized in LAMOST MB pre-segmented experiment. The control system of position actuator adopts distributed-and-centralized mode. Displacement RMS error of the control system (including actuator and electrical control) is less than 50 nm.

Paper Details

Date Published: 21 November 2007
PDF: 7 pages
Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 672106 (21 November 2007); doi: 10.1117/12.782688
Show Author Affiliations
Xixia Du, National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology (China)
Graduate School of Chinese Academy of Sciences (China)
Zhenchao Zhang, National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology (China)
Yongjun Qi, National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology (China)
Aihua Li, National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology (China)


Published in SPIE Proceedings Vol. 6721:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes

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