Translator Disclaimer
16 September 2015 Vibration budget for observatory equipment
Author Affiliations +
Vibration from equipment mounted on the telescope and in summit support buildings has been a source of performance degradation at existing astronomical observatories, particularly for adaptive optics performance. Rather than relying only on best practices to minimize vibration, we present here a vibration budget that specifies allowable force levels from each source of vibration in the observatory (e.g., pumps, chillers, cryocoolers, etc.). This design tool helps ensure that the total optical performance degradation due to vibration is less than the corresponding error budget allocation and is also useful in design trade-offs, specifying isolation requirements for equipment, and tightening or widening individual equipment vibration specifications as necessary. The vibration budget relies on model-based analysis of the optical consequences that result from forces applied at different locations and frequencies, including both image jitter and primary mirror segment motion. We develop this tool here for the Thirty Meter Telescope but hope that this approach will be broadly useful to other observatories, not only in the design phase, but for verification and operations as well.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 2329-4124/2015/$25.00 © 2015 SPIE
Douglas G. MacMartin and Hugh A. Thompson "Vibration budget for observatory equipment," Journal of Astronomical Telescopes, Instruments, and Systems 1(3), 034005 (16 September 2015).
Published: 16 September 2015


Equipment vibration budget for the TMT
Proceedings of SPIE (July 22 2014)
Adaptive optics in China
Proceedings of SPIE (July 19 1999)
The status of the Thirty Meter Telescope project
Proceedings of SPIE (July 17 2008)
TMT status report
Proceedings of SPIE (June 23 2006)
Thirty Meter Telescope project update
Proceedings of SPIE (September 17 2012)

Back to Top