Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA
Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA
复制标题
用于 KAGRA 动力回收镜的带有紧凑阻尼系统的隔振系统
DOI：
10.1088/1361-6382/ab0fcb
复制
发表时间：
2019
影响因子：
3.5
通讯作者：
KAGRA Collaboration
中科院分区：
文献类型：
--
作者：
Akutsu T;et al. (KAGRA Collaboration);KAGRA Collaboration
为日本的干涉引力波天文台KAGRA研制了一种用于功率回收镜的振动隔离系统，称为Bp型系统。Bp型系统的悬挂系统使用三个配备有两个垂直隔振系统的主摆台被动地将光学元件与地震振动隔离。围绕每个主级的紧凑的反作用质量允许以简单的反馈以及振动隔离比实现足够的阻尼性能。KAGRA安装了三个Bp型系统，并证明满足阻尼性能的要求，也对估计的残余位移的光学。
A vibration isolation system called the Type-Bp system used for power recycling mirrors has been developed for KAGRA, the interferometric gravitational-wave observatory in Japan. A suspension of the Type-Bp system passively isolates an optic from seismic vibration using three main pendulum stages equipped with two vertical vibration isolation systems. A compact reaction mass around each of the main stages allows for achieving sufficient damping performance with a simple feedback as well as vibration isolation ratio. Three Type-Bp systems were installed in KAGRA, and were proved to satisfy the requirements on the damping performance, and also on estimated residual displacement of the optics.