Implementation of an active vibration damping system for the SOFIA telescope assembly

Paul C. Janzen; Paul J. Keas

doi:10.1117/12.2056861

22 July 2014 Implementation of an active vibration damping system for the SOFIA telescope assembly

Paul C. Janzen, Paul J. Keas

Proceedings Volume 9145, Ground-based and Airborne Telescopes V; 91452N (2014) https://doi.org/10.1117/12.2056861
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The NASA/DLR Stratospheric Observatory for Infrared Astronomy (SOFIA) employs a 2.5-meter reflector telescope in a Boeing 747SP. The image stability goal for SOFIA is 0.2 arc-seconds. An active damping control system is being developed for SOFIA to reduce image jitter and degradation due to resonance of the telescope assembly. We describe the vibration control system design and implementation in hardware and software. The system’s unique features enabling system testing, control system design, and online health monitoring will also be presented.

Citation Download Citation

Paul C. Janzen and Paul J. Keas "Implementation of an active vibration damping system for the SOFIA telescope assembly", Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91452N (22 July 2014); https://doi.org/10.1117/12.2056861

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