An improved correlation method for determining the period of a torsion pendulum

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2981694· OSTI ID:21266440

Jie, Luo; Dianhong, Wang ^[1]

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1. Faculty of Mechanical and Electronic Information, China University of Geosciences, Wuhan 430074 (China)

Considering variation of environment temperature and unhomogeneity of background gravitational field, an improved correlation method was proposed to determine the variational period of a torsion pendulum with high precision. The result of processing experimental data shows that the uncertainty of determining the period with this method has been improved about twofolds than traditional correlation method, which is significant for the determination of gravitational constant with time-of-swing method.

• OSTI ID: 21266440
• Journal Information: Review of Scientific Instruments, Vol. 79, Issue 9; Other Information: DOI: 10.1063/1.2981694; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
CORRELATIONS
DATA PROCESSING
GRAVITATIONAL FIELDS
TORSION
VARIATIONAL METHODS