Control system for the seismic attenuation system (SAS) in TAMA300

K. Agatsuma, R. Takahashi, K. Arai, D. Tatsumi, Mitsuhiro Fukushima, T. Yamazaki, K. Fujimoto, Y. Arase, N. Nakagawa, A. Takamori, K. Tsubono, K. Kuroda, M. Ohashi, R. Desalvo, A. Bertolini, S. Márka, V. Sannibale

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A new seismic isolation system, TAMA Seismic Attenuation System (TAMA-SAS), was installed to TAMA300 in order to improve the sensitivity at low frequencies. Inertial damping is one of the hierarchical control systems of the TAMA-SAS which are employed to give full play to its ability. We have established two servo loops to control the Inverted Pendulum (IP) which composes the SAS. One is the servo loop using LVDT position sensors to keep the position of the IP. The other is the inertial damping which uses accelerometers to control the inertial motion of the IP for the horizontal direction. The fluctuation of the IP was reduced using our servo system. In addition, reduction of angular and longitudinal fluctuation of the mirror was also confirmed. These results indicate that the control for the IP properly works and the isolation performance of the TAMA-SAS was improved.

Original languageEnglish
Article number012013
JournalJournal of Physics: Conference Series
Volume122
DOIs
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

pendulums
attenuation
isolation
damping
accelerometers
mirrors
low frequencies
sensitivity
sensors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Agatsuma, K., Takahashi, R., Arai, K., Tatsumi, D., Fukushima, M., Yamazaki, T., ... Sannibale, V. (2008). Control system for the seismic attenuation system (SAS) in TAMA300. Journal of Physics: Conference Series, 122, [012013]. https://doi.org/10.1088/1742-6596/122/1/012013

Control system for the seismic attenuation system (SAS) in TAMA300. / Agatsuma, K.; Takahashi, R.; Arai, K.; Tatsumi, D.; Fukushima, Mitsuhiro; Yamazaki, T.; Fujimoto, K.; Arase, Y.; Nakagawa, N.; Takamori, A.; Tsubono, K.; Kuroda, K.; Ohashi, M.; Desalvo, R.; Bertolini, A.; Márka, S.; Sannibale, V.

In: Journal of Physics: Conference Series, Vol. 122, 012013, 2008.

Research output: Contribution to journalArticle

Agatsuma, K, Takahashi, R, Arai, K, Tatsumi, D, Fukushima, M, Yamazaki, T, Fujimoto, K, Arase, Y, Nakagawa, N, Takamori, A, Tsubono, K, Kuroda, K, Ohashi, M, Desalvo, R, Bertolini, A, Márka, S & Sannibale, V 2008, 'Control system for the seismic attenuation system (SAS) in TAMA300', Journal of Physics: Conference Series, vol. 122, 012013. https://doi.org/10.1088/1742-6596/122/1/012013
Agatsuma, K. ; Takahashi, R. ; Arai, K. ; Tatsumi, D. ; Fukushima, Mitsuhiro ; Yamazaki, T. ; Fujimoto, K. ; Arase, Y. ; Nakagawa, N. ; Takamori, A. ; Tsubono, K. ; Kuroda, K. ; Ohashi, M. ; Desalvo, R. ; Bertolini, A. ; Márka, S. ; Sannibale, V. / Control system for the seismic attenuation system (SAS) in TAMA300. In: Journal of Physics: Conference Series. 2008 ; Vol. 122.
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AU - Yamazaki, T.

AU - Fujimoto, K.

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AU - Sannibale, V.

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