An Abnormal Vibrational Mode of Torsion Pendulum

Chin. Phys. Lett.

2003, Vol. 20

Issue (8): 1206-1209 DOI:

Original Articles

An Abnormal Vibrational Mode of Torsion Pendulum

ZHAO Liang¹;TU Ying¹;GU Bang-Ming²;HU Zhong-Kun¹;LUO Jun^1,2

¹Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 ²Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077

Cite this article:

ZHAO Liang, TU Ying, GU Bang-Ming et al 2003 Chin. Phys. Lett. 20 1206-1209

Download: PDF(514KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract 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.

Keywords: 04.80.Cc 06.20.Jr

Published: 01 August 2003

PACS:	04.80.Cc	(Experimental tests of gravitational theories)
	06.20.Jr	(Determination of fundamental constants)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I8/01206

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	ZHAO Liang
	TU Ying
	GU Bang-Ming
	HU Zhong-Kun
	LUO Jun

Related articles from Frontiers Journals

[1]	LUO Jie, SHAO Cheng-Gang, WANG Dian-Hong, TIAN Yuan. Influence of the Earth's Rotation on Measurement of Newton's Constant by using the Angular Acceleration Method[J]. Chin. Phys. Lett., 2012, 29(6): 1206-1209
[2]	ZHU Yin . Measurement of the Speed of Gravity[J]. Chin. Phys. Lett., 2011, 28(7): 1206-1209
[3]	LI Qing, LIU Lin-Xia, TU Liang-Cheng, SHAO Cheng-Gang, LUO Jun. Effect of Local Magnetic Field in G Measurement with Time-of-Swing Method[J]. Chin. Phys. Lett., 2010, 27(7): 1206-1209
[4]	ZHANG Ji-Tao, LI Yan, LUO Zhi-Yong, WU Xue-Jian. Determination of Mean Thickness of an Oxide Layer on a Silicon Sphere by Spectroscopic Ellipsometry[J]. Chin. Phys. Lett., 2010, 27(5): 1206-1209
[5]	LIU Lin-Xia, GUAN Sheng-Guo, LIU Qi, ZHANG Ya-Ting, SHAO Cheng-Gang, LUO Jun. Precision Measurement of Distribution of Film Thickness on Pendulum for Experiment of G[J]. Chin. Phys. Lett., 2009, 26(9): 1206-1209
[6]	LIU Lin-Xia, SHAO Cheng-Gang, TU Liang-Cheng, LUO Jun. Measurement of Density Inhomogeneity for Source Masses in Time-of-Swing Method of Measuring[J]. Chin. Phys. Lett., 2009, 26(1): 1206-1209
[7]	Sanjay Oli. String Cosmological Models in Five-Dimensional Spacetimes[J]. Chin. Phys. Lett., 2009, 26(1): 1206-1209
[8]	LIU Lin-Xia, LIU Qi, SHAO Cheng-Gang, ZHANG Ya-Ting, LUO Jun, Vadim Milyukov. Measurement of Density Inhomogeneity for Glass Pendulum[J]. Chin. Phys. Lett., 2008, 25(12): 1206-1209
[9]	LUO Jie, WANG Dian-Hong, LIU Qi, SHAO Cheng-Gang. Precise Determination of Period of a Torsion Pendulum in Measurement of Gravitational Constant[J]. Chin. Phys. Lett., 2005, 22(9): 1206-1209
[10]	YUE Ying, FAN Shu-Hua, LIU Lin-Xia, LUO Jun. Dynamical Behaviour of a Modulated Torsion Pendulum in Test of Weak Equivalence Principle[J]. Chin. Phys. Lett., 2005, 22(8): 1206-1209
[11]	ZHOU Ze-Bing, WANG Shi-Fang, LUO Jun. Time-Domain Smoothing Processing for Equivalence-Principle Test Using Free-Fall Method[J]. Chin. Phys. Lett., 2005, 22(7): 1206-1209
[12]	LIU Lin-Xia, SHAO Cheng-Gang, LUO Jun. Gravitational Faraday Rotation of the Earth and Its Possible Test[J]. Chin. Phys. Lett., 2005, 22(12): 1206-1209
[13]	NI Wei-Tou. Probing the Microscopic Origin of Gravity via Precision Polarization and Spin Experiments[J]. Chin. Phys. Lett., 2005, 22(1): 1206-1209
[14]	ZHOU Ze-Bing, DONG Ying-Jie, TIAN Yu-Long, QIN Dan, LUO Jun. Excitation Frequency Effect of Differential Capacitance Transducer for Equivalence Principle Test[J]. Chin. Phys. Lett., 2004, 21(7): 1206-1209
[15]	GUO Jun-Qi, HU Zhong-Kun, GU Bang-Ming, LUO Jun,. Measurement of Eccentricity of the Centre of Mass from the Geometric Centre of a Sphere[J]. Chin. Phys. Lett., 2004, 21(4): 1206-1209

Viewed

Full text

Abstract