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Proceedings Paper

Encoder system design: strategies for error compensation
Author(s): Dario Mancini; Annalina Auricchio; Massimo Brescia; Enrico Cascone; Fausto Cortecchia; Pietro Schipani; Gianfranco Spirito
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Paper Abstract

The encoder is the most used angular transducer in position control applications, such as the main axes position control of a telescope. In astronomical applications a very high precision in axes control is required. So a good encoder system design is essential to satisfy the requirements settled by the scientific goals. Today very good encode system are provided by several suppliers, with multiple readouts and error compensation capabilities into increase the reading precision and lessen the errors. Nevertheless during the lifetime of the system some unexpected errors can arise. In this paper some techniques to recognize, analyze and lessen the unavoidable encoder system error are described, with reference to some case studied.

Paper Details

Date Published: 26 May 1998
PDF: 7 pages
Proc. SPIE 3351, Telescope Control Systems III, (26 May 1998); doi: 10.1117/12.308835
Show Author Affiliations
Dario Mancini, Astronomical Observatory of Capodimonte (Italy)
Annalina Auricchio, Astronomical Observatory of Capodimonte (Italy)
Massimo Brescia, Astronomical Observatory of Capodimonte (Italy)
Enrico Cascone, Astronomical Observatory of Capodimonte (Italy)
Fausto Cortecchia, Astronomical Observatory of Capodimonte (Italy)
Pietro Schipani, Astronomical Observatory of Capodimonte (Italy)
Gianfranco Spirito, Astronomical Observatory of Capodimonte (Italy)

Published in SPIE Proceedings Vol. 3351:
Telescope Control Systems III
Hilton Lewis, Editor(s)

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