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Mechanical filters for the gravitational waves detector VIRGO: Performance of a two-stage suspension

 

作者: S. Braccini,   C. Bradaschia,   R. Del Fabbro,   A. Di Virgilio,   I. Ferrante,   F. Fidecaro,   R. Flaminio,   A. Gennai,   A. Giazotto,   P. La Penna,   G. Losurdo,   F. Palla,   A. Pasqualetti,   D. Passuello,   R. Poggiani,   Z. Zhang,  

 

期刊: Review of Scientific Instruments  （AIP Available online 1997）
卷期: Volume 68, issue 10  

页码: 3904-3906

 

ISSN:0034-6748

 

年代: 1997

 

DOI:10.1063/1.1148045

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Mechanical filters using cantilever springs as elastic elements have been developed for the seismic isolation system of the VIRGO gravitational wave detector. A two-stage suspension has been built in order to study how the attenuation performances of individual filters combine when the filters are cascaded. An attenuation⩾80 dBin the vertical direction and⩾110 dBin the horizontal direction has been attained for frequencies above 10 Hz. ©1997 American Institute of Physics.

 

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