| An Abnormal Vibrational Mode of Torsion Pendulum |
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| 作者姓名： | 赵亮 涂英 顾邦明 胡忠坤 罗俊 |
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| 作者单位： | [1]DepartmentofPhysics,HuazhongUniversityofScienceandTechnology,Wuhan430074 [2]InstituteofGeodesyandGeophysics,ChineseAcademyofSciences.Wuhan430077 |
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| 摘 要： | In the experiment for the determination of the gravitational constant G,we found an abnormal vibrational mode of the torsion pendulum.The abnormal mode disappeared as a magnetic damper was introduced to the torsion pendulum system.Our experimental results also show that the magnetic damper can be used to suppress the high frequency vibrational noises to torsion pendulums effectively.
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| 关 键 词： | 异常振动模型 扭转钟摆 磁阻尼器 平衡位置 重力常数 测量仪器 |
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