The fiber view metrology system design for spectral survey telescope

Kang Zhao; Zhigang Liu; Hongzhuan Hu; Jianping Wang; Chao Zhai; Zengxiang Zhou

doi:10.1117/12.2307301

6 July 2018 The fiber view metrology system design for spectral survey telescope

Kang Zhao, Zhigang Liu, Hongzhuan Hu, Jianping Wang, Chao Zhai, Zengxiang Zhou

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107002A (2018) https://doi.org/10.1117/12.2307301
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Since the large scale use of paralleled controllable fiber positioner in LAMOST, the newly designed spectral survey telescope project generally uses the fiber position unit which similar to LAMOST to obtain the target spectrum. The positioning accuracy of the fiber positioner is directly related to the performance of the telescope. In order to further improve the positioning accuracy of positioners system, it is an important way to improve the accuracy by measuring the position of the optical fiber end on the positioners by using the visual metrology system. This paper mainly introduces the research design of LAMOST closed-loop metrology system, and the closed-loop system was established in different positions within the telescope to acquire best results. The metrology system will improve the fiber positioner system operation accuracy and reliability after the completion of the entire system in the future.

Citation Download Citation

Kang Zhao, Zhigang Liu, Hongzhuan Hu, Jianping Wang, Chao Zhai, and Zengxiang Zhou "The fiber view metrology system design for spectral survey telescope", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107002A (6 July 2018); https://doi.org/10.1117/12.2307301

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