Trifilar torsion pendulum for measurement of dissipation caused by an electric field

被引：1
|
作者：
Mitrofanov, VP [1 ]
Styazhkina, NA [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2000年 / 71卷 / 10期
关键词：
D O I：
10.1063/1.1290501
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A trifilar all-fused silica pendulum with a Q factor exceeding 10(7) is described. This pendulum has been used to study the damping caused by an electric field applied between the suspended mass and a nearby electrode. Among the different loss mechanisms the most interesting one is associated with the surfaces of the electrodes. Application of a field of 10(6) V/m added an excess loss Q(e)(-1) of at least 10(-7). These results are important for laser interferometer gravitational wave detectors since electrostatic actuators are supposed to be used in order to precisely align the cavity mirrors. (C) 2000 American Institute of Physics. [S0034-6748(00)03710-2].
引用
收藏
页码：3905 / 3909
页数：5
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