Vibration measurements in astronomical observatories toward robust AO and instrument designs

Peter W. G. Byrnes; Thomas L. Hayward; Brian Chinn

doi:10.1117/12.2562735

13 December 2020 Vibration measurements in astronomical observatories toward robust AO and instrument designs

Peter W. G. Byrnes, Thomas L. Hayward, Brian Chinn

Proceedings Volume 11445, Ground-based and Airborne Telescopes VIII; 114456T (2020) https://doi.org/10.1117/12.2562735
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

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Abstract

Vibration measurements at the Gemini South observatory were conducted in February 2020, in order to experimentally determine acceleration transfer functions between the instrument support structure and key locations on the telescope, including the optics. An electrodynamic exciter was used to impart known dynamic forces into the telescope structure. Acceleration responses were measured at numerous locations on the telescope, including on M1 and M2, using the facility Vibration Monitoring System (VMS) accelerometers. This paper describes the equipment, the experimental approach, and will summarize initial results from these tests.

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Peter W. G. Byrnes, Thomas L. Hayward, and Brian Chinn "Vibration measurements in astronomical observatories toward robust AO and instrument designs", Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII, 114456T (13 December 2020); https://doi.org/10.1117/12.2562735

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