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A Coarse Pointing Assembly for Optical CommunicationIn the framework of a contract with the European Space Agency, RUAG Space are developing a Coarse Pointing Assembly for an Optical Communication Terminal with the goal to enable high-bandwidth data exchange between GEO and/or LEO satellites as well as to earth-bound ground stations. This paper describes some development and testing aspects of such a high precision opto-mechanical device, with emphasis on the influence of requirements on the final design, the usage of a Bearing Active Preload System, some of the lessons learned on the BAPS implementation, the selection of a flex print design as rotary harness and some aspects of functional and environmental testing.
Document ID
Document Type
Conference Paper
Szekely, G. (RUAG Space AG Zurich, Switzerland)
Blum, D. (RUAG Space AG Zurich, Switzerland)
Humphries, M. (RUAG Space AG Zurich, Switzerland)
Koller, A. (RUAG Space AG Zurich, Switzerland)
Mussett, D. (RUAG Space AG Zurich, Switzerland)
Schuler, S. (RUAG Space AG Zurich, Switzerland)
Vogt, P. (RUAG Space AG Zurich, Switzerland)
Date Acquired
August 29, 2013
Publication Date
May 12, 2010
Publication Information
Publication: Proceedings of the 40th Aerospace Mechanisms Symposium
Subject Category
Space Sciences (General)
Distribution Limits
Public Use Permitted.

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