Constant force actuator for gravitational wave detector's seismic attenuation systems (SAS)
Constant force actuator for gravitational wave detector's seismic attenuation systems (SAS)
复制标题
用于引力波探测器地震衰减系统 (SAS) 的恒力执行器
DOI：
10.1016/s0168-9002(02)00801-x
复制
发表时间：
2002
影响因子：
1.4
通讯作者：
R. Stanga
中科院分区：
文献类型：
--
作者：
A. Takamori;Chenyang Wang;R. DeSalvo;A. Gennai;L. Holloway;G. Losurdo;S. Márka;F. Paoletti;D. Passuello;V. Sannibale;R. Stanga
我们设计、测试并实现了一种特高压兼容、低噪声、非接触式力致动器，用于TAMA引力波干涉仪设计的地震衰减系统（SAS）的直流定位和刚体共振的惯性阻尼。执行器完全满足严格的零力梯度要求，这是防止将地震噪声重新注入SAS链所必需的。执行器的封闭磁场设计使得功耗要求特别低，对外部扰动的敏感性低。即使在小地震期间，驱动器也能保持足够的强度来吸收地震扰动。
We have designed, tested and implemented a UHV-compatible, low-noise, non-contacting force actuator for DC positioning and inertial damping of the rigid body resonances of the Seismic Attenuation System (SAS) designed for the TAMA Gravitational Wave Interferometer. The actuator fully satisfies the stringent zero-force-gradient requirements that are necessary to prevent re-injecting seismic noise into the SAS chain. The actuator's closed magnetic field design makes for particularly low power requirements, and low susceptibility to external perturbations. The actuator retains enough strength to absorb seismic perturbations even during small earthquakes.