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Proceedings Paper

Optical telescope drive system modeling
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Paper Abstract

Very precise models are required to simulate drive system performance in terms of tracking accuracy. In any case it becomes very hard to identify the correct system transfer function because of the near zero speed nonlinear characteristics of several system subsections. On the other hand, very precise models are unnecessary because of the relative implication with the mechanical structure performance often represented by simplified models due to the complexity of the mechanical structure itself. For these reasons a simplified drive system model can be sufficient to define the macro capabilities of the same system (i.e., required torque, ripple, encoder resolution) while system tracking accuracy can be foreseen by means of a detailed study of any subsystem performance. On the other hand, a model identification can be performed when a precise simulation of the system behavior is necessary but it is possible only if the system has been already done. As a matter of fact a system model is not only necessary to study and to forecast the system performance but it is also necessary to allow a very precise simulation of system capabilities necessary for future improvements. The present paper describes an approach that allows us to identify a real and reliable model of the system starting from the same system real behaviors.

Paper Details

Date Published: 8 June 1995
PDF: 4 pages
Proc. SPIE 2479, Telescope Control Systems, (8 June 1995); doi: 10.1117/12.211439
Show Author Affiliations
Dario Mancini, Osservatorio Astronomico di Capodimonte (Italy)
Enrico Cascone, Osservatorio Astronomico di Capodimonte (Italy)

Published in SPIE Proceedings Vol. 2479:
Telescope Control Systems
Patrick T. Wallace, Editor(s)

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