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Proceedings Paper

A versatile motion control system for astronomical instrumentation
Author(s): Karl Wagner; Matthias Alter; André Bideaux; Ralf Klein; Michael Lehmitz; Lars Mohr; José Ricardo Ramos
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Paper Abstract

With steadily increasing telescope sizes and the growing complexity of scientific instruments, there is an ever-growing demand for improved electronics, controlling all the different optical parts on moving mechanisms. Among competing requirements are, on one hand, the increasing number of actuators, with high-precision positioning in closed and open loop, and on the other hand, smaller sizes, low power and restricted heat emission. A specific challenge is accommodating mechanisms that operate in infrared instrumentation at cryogenic temperatures down to 60 Kelvin. In this area piezo motors offer promising solutions. To fulfill these different demands a competitive motion control system has been developed at the Max-Planck-Institut für Astronomie (MPIA) in Heidelberg, Germany. A modular chassis with standardized boards provides best solutions for extensive tasks. High and low power DC servo motors, brushless DC servo motors, stepper motors and piezo motors with different technologies are supported. Diversity position feedback capabilities, like incremental and absolute encoders for non cryogenic and capacitive sensors and resolvers for cryogenic applications, are provided.

Paper Details

Date Published: 20 July 2010
PDF: 10 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77353Y (20 July 2010); doi: 10.1117/12.856243
Show Author Affiliations
Karl Wagner, Max-Planck-Institut für Astronomie (Germany)
Matthias Alter, Max-Planck-Institut für Astronomie (Germany)
André Bideaux, Hochschule Mannheim (Germany)
Ralf Klein, Max-Planck-Institut für Astronomie (Germany)
Michael Lehmitz, Max-Planck-Institut für Astronomie (Germany)
Lars Mohr, Max-Planck-Institut für Astronomie (Germany)
José Ricardo Ramos, Max-Planck-Institut für Astronomie (Germany)

Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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