Control system of position actuators for segmented mirror active optics in LAMOST

Xixia Du; Zhenchao Zhang; Yongjun Qi; Aihua Li

doi:10.1117/12.782688

21 November 2007 Control system of position actuators for segmented mirror active optics in LAMOST

Xixia Du, Zhenchao Zhang, Yongjun Qi, Aihua Li

Proceedings Volume 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 672106 (2007) https://doi.org/10.1117/12.782688
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

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 M_B 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.

Citation Download Citation

Xixia Du, Zhenchao Zhang, Yongjun Qi, and Aihua Li "Control system of position actuators for segmented mirror active optics in LAMOST", Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 672106 (21 November 2007); https://doi.org/10.1117/12.782688

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