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  Passive-performance, analysis, and upgrades of a 1-ton seismic attenuation system

Bergmann, G., Mow-Lowry, C. M., Adya, V. B., Bertolini, A., Hanke, M., Kirchhoff, R., et al. (in preparation). Passive-performance, analysis, and upgrades of a 1-ton seismic attenuation system.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-DBC7-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-DBC8-1
Genre: Journal Article

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 Creators:
Bergmann, G.1, Author              
Mow-Lowry, C. M.1, Author              
Adya, V. B.1, Author
Bertolini, A.1, Author              
Hanke, M.1, Author              
Kirchhoff, R.1, Author              
Köhlenbeck, S.1, Author              
Kühn, G.1, Author              
Oppermann, P.1, Author              
Wanner, A.1, Author              
Westphal, T.1, Author              
Wöhler, J.1, Author              
Wu, D. S.1, Author
Lück, H.1, Author              
Strain, K. A.1, Author              
Danzmann, K.1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Physics, Instrumentation and Detectors, physics.ins-det
 Abstract: The 10m Prototype facility at the Albert-Einstein-Institute (AEI) in Hanover, Germany, employs three large seismic attenuation systems to reduce mechanical motion. The AEI Seismic-Attenuation-System (AEI-SAS) uses mechanical anti-springs in order to achieve resonance frequencies below 0.5Hz. This system provides passive isolation from ground motion by a factor of about 400 in the horizontal direction at 4Hz and in the vertical direction at 9Hz. The presented isolation performance is measured under vacuum conditions using a combination of commercial and custom-made inertial sensors. Detailed analysis of this performance led to the design and implementation of tuned dampers to mitigate the effect of the unavoidable higher order modes of the system. These dampers reduce RMS motion substantially in the frequency range between 10 and 100Hz in 6 degrees of freedom. The results presented here demonstrate that the AEI-SAS provides substantial passive isolation at all the fundamental mirror-suspension resonances.

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 Dates: 2017-07-10
 Publication Status: Not specified
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 Identifiers: arXiv: 1707.02903
DOI: 10.1088/1361-6382/aa5e1f
URI: http://arxiv.org/abs/1707.02903
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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 34 (6) Sequence Number: 065002 Start / End Page: - Identifier: -