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Proceedings Paper

New type of optical fiber positioning unit device for LAMOST
Author(s): Hongzhuan Hu; Xiaozheng Xing; Chao Zhai; Weimin Li
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Paper Abstract

This paper proposes an optical fiber positioning unit device for LAMOST(Large Area Multi-Object Fiber Spectroscope Telescope), It consists of a central shaft revolving mechanism, and eccentric shaft revolving mechanism relative to central shaft. The central shaft turns round at the range of -180° to +180° and the eccentric shaft turns round at the range of -90° to +90° driving by each control motor. When positioning, the optical fiber end moves on the focal plate throughout, and can never deviate from focal plane. It has simple structure, could be machined and assembled and taken down easily and could be ensured machining practices easily, so could be reduced manufacture costs. The unit sets mechanical electrical zero position detecting device to reduce the accumulate error of multi-positioning. Testing result have demonstrated this new double revolving optical fiber positioning unit device can accord with the demand of LAMOST entirely.

Paper Details

Date Published: 4 February 2003
PDF: 8 pages
Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); doi: 10.1117/12.458000
Show Author Affiliations
Hongzhuan Hu, Univ. of Science and Technology of China (China)
Xiaozheng Xing, Univ. of Science and Technology of China (China)
Chao Zhai, Univ. of Science and Technology of China (China)
Weimin Li, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 4837:
Large Ground-based Telescopes
Jacobus M. Oschmann; Larry M. Stepp, Editor(s)

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