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22 July 2016 A new modular guidance system for the Southern African Large Telescope
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.2231407;

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