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Proceedings Paper

Optics derotator servo control system for SONG Telescope
Author(s): Jin Xu; Changzhi Ren; Yu Ye
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Paper Abstract

The Stellar Oscillations Network Group (SONG) is an initiative which aims at designing and building a groundbased network of 1m telescopes dedicated to the study of phenomena occurring in the time domain. Chinese standard node of SONG is an Alt-Az Telescope of F/37 with 1m diameter. Optics derotator control system of SONG telescope adopts the development model of "Industrial Computer + UMAC Motion Controller + Servo Motor".1 Industrial computer is the core processing part of the motion control, motion control card(UMAC) is in charge of the details on the motion control, Servo amplifier accepts the control commands from UMAC, and drives the servo motor. The position feedback information comes from the encoder, to form a closed loop control system. This paper describes in detail hardware design and software design for the optics derotator servo control system. In terms of hardware design, the principle, structure, and control algorithm of servo system based on optics derotator are analyzed and explored. In terms of software design, the paper proposes the architecture of the system software based on Object-Oriented Programming.

Paper Details

Date Published: 17 September 2012
PDF: 7 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84444T (17 September 2012); doi: 10.1117/12.924943
Show Author Affiliations
Jin Xu, Nanjing Institute of Astronomical Optics & Technology (China)
Changzhi Ren, Nanjing Institute of Astronomical Optics & Technology (China)
Yu Ye, Nanjing Institute of Astronomical Optics & Technology (China)

Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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