13 December 2002 The New Swedish Solar Telescope Control System
Author Affiliations +
Abstract
This paper describes the new Swedish solar telescope control system which is currently in the final phases of testing and tuning. The telescope has two current controlled motors per axis and encoder resolution of 0.0016 arcsecond per pulse. The servo consists of a cascaded position-velocity loop system implemented on a Compaq Alpha workstation class computer. The servo position correction loop runs at a frequency of 100 Hz whilst the faster velocity loop runs at 1KHz. This choice of servo allows a methodical tuning of gains because each gain is correcting a seperate frequency range. We shall describe the mechanical design employed in the telescope and the computer control. The real time requirements of the control servo will be explained along with how we have used standard commercial hardware and operating system to achieve this.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter M. Dettori, Göran Hosinsky, "The New Swedish Solar Telescope Control System", Proc. SPIE 4848, Advanced Telescope and Instrumentation Control Software II, (13 December 2002); doi: 10.1117/12.461603; https://doi.org/10.1117/12.461603
PROCEEDINGS
6 PAGES


SHARE
KEYWORDS
Telescopes

Servomechanisms

Computer programming

Control systems

Solar telescopes

Mirrors

Operating systems

RELATED CONTENT

Controlling the UKIRT upgrades program
Proceedings of SPIE (June 08 1995)
Gemini mount control system: description and progress
Proceedings of SPIE (September 18 1997)
New JCMT telescope control system
Proceedings of SPIE (May 26 1998)
Control Software For The La Palma Telescopes
Proceedings of SPIE (August 20 1986)
W.M. Keck Telescope control system
Proceedings of SPIE (June 01 1994)

Back to Top