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Proceedings Paper

Galileo high-resolution encoder system
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Paper Abstract

The Galileo National Telescope (TNG) is a 3.6 meter Alt-Az telescope installed at the Astronomical Observatory of the Roque de Los Muchachos in La Palma, Canary Islands (Spain). The TNG motion control system, designed and realized by the Technology Working Group (TWG), is completely digital because of the versatility of this system topology. In a digital control system using an encoder as transducer means to have a digital feedback signal, therefore directly comparable with the reference without any conversion that is essential with other kinds of transducers. In the following the Galileo telescope (TNG) encoder system with its control electronics and the management software are described. It has been realized by a collaboration between the Heidenhain Company and the TWG. The TNG encoder system, at the state of the art, has one of the highest performances in the telescopes field, in terms of resolution, accuracy, readout time, reliability.

Paper Details

Date Published: 18 September 1997
PDF: 7 pages
Proc. SPIE 3112, Telescope Control Systems II, (18 September 1997); doi: 10.1117/12.284230
Show Author Affiliations
Dario Mancini, Astronomical Observatory of Capodimonte (Italy)
Enrico Cascone, Astronomical Observatory of Capodimonte (Italy)
Pietro Schipani, Astronomical Observatory of Capodimonte (Italy)


Published in SPIE Proceedings Vol. 3112:
Telescope Control Systems II
Hilton Lewis, Editor(s)

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