Paper
29 September 2004 Cryogenic actuators in ground-based astronomical instrumentation
Ralf-Rainer Rohloff, Harald Baumeister, Monica Ebert, Norbert Munch, Vianak Naranjo
Author Affiliations +
Abstract
In the last few years, astronomical instruments with infrared detectors have become increasingly important. These detectors as well as the mechanical mechanisms inside the instruments are operated in high vacuum at cryogenic temperature. Since ready-for-use cryogenic actuators are often not available from stock, the Max-Planck-Institut fur Astronomie (MPIA) in Heidelberg has developed actuators for both linear and circular movement. Information about the use of materials, dry film lubricants, and components like motors, micro switches and resolvers for this temperature region is hard to find in literature. Thus, large-scale experiments and tests were made to gain experience and to qualify the actuators for their use at cryogenic temperatures.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ralf-Rainer Rohloff, Harald Baumeister, Monica Ebert, Norbert Munch, and Vianak Naranjo "Cryogenic actuators in ground-based astronomical instrumentation", Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); https://doi.org/10.1117/12.551114
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Cited by 5 scholarly publications.
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KEYWORDS
Actuators

Cryogenics

Spindles

Sensors

Switches

Aluminum

Astronomical instrumentation

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