A new modular guidance system for the Southern African Large Telescope

Janus D. Brink; Ockert J. Strydom; Stephen N. Hulme; Anthony R. Koeslag; Deneys S. Maartens; Martin Wilkinson; Wouter Lochner; Keith Browne; Eben P. Wiid; Raoul van den Berg

doi:10.1117/12.2231407

22 July 2016 A new modular guidance system for the Southern African Large Telescope

Janus D. Brink, Ockert J. Strydom, Stephen N. Hulme, Anthony R. Koeslag, Deneys S. Maartens, Martin Wilkinson, Wouter Lochner, Keith Browne, Eben P. Wiid, Raoul van den Berg

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 99125F (2016) https://doi.org/10.1117/12.2231407
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Following successful commissioning of the SALT Fiber Instrument Feed guidance system, the concept was developed further to re-design the guidance probe currently supporting observations with the Robert Stobie Spectrograph. Major advances of the new system include a compact, modular and line-replaceable design, high optical efficiency, a doubleprobe positioning system allowing both translation and rotation guidance corrections as well as closed-loop focus feedback.

The mechanical and optical designs, the control system architecture and performance aspects of the system are presented. The probe‘s integration with the greater telescope software control system is also discussed.

Citation Download Citation

Janus D. Brink, Ockert J. Strydom, Stephen N. Hulme, Anthony R. Koeslag, Deneys S. Maartens, Martin Wilkinson, Wouter Lochner, Keith Browne, Eben P. Wiid, and Raoul van den Berg "A new modular guidance system for the Southern African Large Telescope", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99125F (22 July 2016); https://doi.org/10.1117/12.2231407

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