Local active isolation of the AEI-SAS for the AEI 10 m prototype facility

verfasst von: R. Kirchhoff, C. M. Mow-Lowry, G. Bergmann, M. M. Hanke, P. Koch, S. M. Köhlenbeck, S. Leavey, J. Lehmann, P. Oppermann, J. Wöhler, D. S. Wu, H. Lück, K. A. Strain
Abstract: High precision measurements in various applications rely on active seismic isolation to decouple the experiment from seismic motion; therefore, closed feed-back control techniques such as sensor blending and sensor correction are commonly implemented. This paper reviews the active isolation techniques of the Albert Einstein Institute seismic attenuation system (AEI-SAS). Two approaches to improve the well known techniques are presented. First, the influence of the sensor basis for the signal-to-noise ratio in the chosen coordinate system is calculated and second, a procedural optimization of blending filters to minimize the optical table velocity is performed. Active isolation techniques are adapted to the mechanical properties and the available sensors and actuators of the AEI-SAS. The performance of the final isolation is presented and limitations to the isolation are analyzed in comparison to a noise model. The optical table motion reaches approximately at 1 Hz, reducing the ground motion by a factor of approximately 100.
Organisationseinheit(en): Institut für Gravitationsphysik
Externe Organisation(en): Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
University of Birmingham
University of Glasgow
Typ: Artikel
Journal: Classical and quantum gravity
Band: 37
ISSN: 0264-9381
Publikationsdatum: 04.05.2020
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Physik und Astronomie (sonstige)
Elektronische Version(en): https://doi.org/10.1088/1361-6382/ab857e (Zugang: Offen)

BibTeX

@article{99cbfe7a7b1149e2a853f660876b3e77,
title = "Local active isolation of the AEI-SAS for the AEI 10 m prototype facility",
abstract = "High precision measurements in various applications rely on active seismic isolation to decouple the experiment from seismic motion; therefore, closed feed-back control techniques such as sensor blending and sensor correction are commonly implemented. This paper reviews the active isolation techniques of the Albert Einstein Institute seismic attenuation system (AEI-SAS). Two approaches to improve the well known techniques are presented. First, the influence of the sensor basis for the signal-to-noise ratio in the chosen coordinate system is calculated and second, a procedural optimization of blending filters to minimize the optical table velocity is performed. Active isolation techniques are adapted to the mechanical properties and the available sensors and actuators of the AEI-SAS. The performance of the final isolation is presented and limitations to the isolation are analyzed in comparison to a noise model. The optical table motion reaches approximately at 1 Hz, reducing the ground motion by a factor of approximately 100.",
keywords = "active seismic isolation, AEI 10 m prototype, gravitational wave detection",
author = "R. Kirchhoff and Mow-Lowry, {C. M.} and G. Bergmann and Hanke, {M. M.} and P. Koch and K{\"o}hlenbeck, {S. M.} and S. Leavey and J. Lehmann and P. Oppermann and J. W{\"o}hler and Wu, {D. S.} and H. L{\"u}ck and Strain, {K. A.}",
year = "2020",
month = may,
day = "4",
doi = "10.1088/1361-6382/ab857e",
language = "English",
volume = "37",
journal = "Classical and quantum gravity",
issn = "0264-9381",
publisher = "IOP Publishing Ltd.",
number = "11",
}