Determination of the Unperturbed Period of a Torsion Pendulum in the Time-of-Swing Method
LUO Jun, HU Zhong-kun, LUO Xu-jun, WU Zi-gang
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Determination of the Unperturbed Period of a Torsion Pendulum in the Time-of-Swing Method
LUO Jun;HU Zhong-kun;LUO Xu-jun;WU Zi-gang
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
关键词 ：
04.80.Cc ,
06.20.Jr
Abstract ： A symmetric disc-shaped torsion pendulum was designed to study the nonlinear effects of the torsion fiber. It was showed that the period of the pendulum decreases with the amplitude of the oscillation. Determination of the unperturbed period through a fit to measured data of the period variation with amplitude shows that this systematic error in the measurement of Newtonian gravitational constant G by the time-of-swing method can be reduced by an order of the magnitude at least.
Key words ：
04.80.Cc
06.20.Jr
出版日期: 1999-12-01
:
04.80.Cc
(Experimental tests of gravitational theories)
06.20.Jr
(Determination of fundamental constants)
引用本文:
LUO Jun;HU Zhong-kun;LUO Xu-jun;WU Zi-gang. Determination of the Unperturbed Period of a Torsion Pendulum in the Time-of-Swing Method[J]. 中国物理快报, 1999, 16(12): 867-869.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1999/V16/I12/867
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1999, Vol. 16 
