Feasibility of a magnetic suspension for second generation gravitational wave interferometers

被引：10
|
作者：
Varvella, M
Calloni, E
Di Fiore, L
Milano, L
Arnaud, N
机构：
[1] CNRS, IN2P3, LabAccelerateur Lineaire, F-91898 Orsay, France
[2] Univ Paris 11, F-91898 Orsay, France
[3] Univ Naples Federico II, Ist Nazl Fis Nucl, Sez Napoli, Naples, NA, Italy
来源：
ASTROPARTICLE PHYSICS | 2004年 / 21卷 / 03期
关键词：
gravitational waves; magnetic levitation; suspended interferometer; Virgo superattenuator; control systems;
D O I：
10.1016/j.astropartphys.2004.01.002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
This paper deals with the use of a magnetic levitation system as a part of a multi-stage seismic attenuator for gravitational wave interferometric antennas. The proposed configuration uses permanent magnets in attraction to balance the suspended weight, plus a closed loop position control to obtain a stable levitation. The system is analyzed using a MATLAB simulation code to compute the forces exerted by extended magnets. The validity of this model has been tested by a comparison with the experimental data from a levitated suspension prototype. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：325 / 335
页数：11
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