Methodological notes

Measuring the gravitational constant in a university laboratory

N.I. Lobachevskii Nizhnii Novgorod State University, prosp. Gagarina 23, Nizhnii Novgorod, Russian Federation

A setup for measuring gravitational constant in a university laboratory is described. The setup includes a torsion pendulum which swings under the action of gravitational attraction from test masses whose positions are made to change periodically in phase with pendulum oscillations by a special device. The gravity constant is calculated from the amplitude of steady-state oscillations. The experimental and calculation procedure is described and measurement errors are estimated.

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Fulltext is also available at DOI: 10.1070/PU2002v045n05ABEH001066
PACS: 01.50.Pa, 04.80.Cc, 06.20.Jr (all)
DOI: 10.1070/PU2002v045n05ABEH001066
Citation: Stepanov N S, Shisharin A V "Measuring the gravitational constant in a university laboratory" Phys. Usp. 45 561–564 (2002)
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Оригинал: Степанов Н С, Шишарин А В «Измерение гравитационной постоянной в учебной лаборатории» УФН 172 609–613 (2002); DOI: 10.3367/UFNr.0172.200205f.0609

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