Coupled modes of the torsion pendulum

被引：22

作者：

Fan, Xiang-Dong ^{[1
]}

Liu, Qi ^{[1
]}

Liu, Lin-Xia ^{[1
]}

Milyukov, Vadim ^{[2
]}

Luo, Jun ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China

[2] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119899, Russia

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 05期

基金：

中国国家自然科学基金; 俄罗斯基础研究基金会;

关键词：

torsion pendulum; torsional mode couplings; analytic solution;

D O I：

10.1016/j.physleta.2007.08.020

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The coupling of the swing modes of a torsion pendulum to the torsional mode has been solved analytically. Our solution provides a clear explanation of why a magnetic damper is effective in suppressing unwanted modes in most gravitational experiments. The analytic solution also shows that the amplitude of the mode coupling is greatest at the lowest frequencies. This explains why mode coupling at the lowest frequency is all that is observed in the experiments reported here. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：547 / 552

页数：6

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