Dynamical Behaviour of a Modulated Torsion Pendulum in Test of Weak Equivalence Principle

Chin. Phys. Lett.

2005, Vol. 22

Issue (8): 1837-1840 DOI:

Original Articles

Dynamical Behaviour of a Modulated Torsion Pendulum in Test of Weak Equivalence Principle

YUE Ying;FAN Shu-Hua;LIU Lin-Xia;LUO Jun

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074

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YUE Ying, FAN Shu-Hua, LIU Lin-Xia et al 2005 Chin. Phys. Lett. 22 1837-1840

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Abstract The dynamic behaviour of a modulated torsion pendulum used to test the weak equivalence principle (WEP) is studied in detail. Theoretical analysis shows that the pendulum will be driven by a force with double-frequency of the rotating turntable no matter whether the WEP is valid or not. This double-frequency effect should be considered for improving the sensitivity of the modulated pendulum in test of the WEP.

Keywords: 04.80.Cc 07.05.Fb 06.20.Jr

Published: 01 August 2005

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

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I8/01837

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	YUE Ying
	FAN Shu-Hua
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