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The BIPM measurements of the Newtonian constant of gravitation, G

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1098/rsta.2014.0032
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FormatText, Article
Subjectgravitational constant; gravity; experimental gravitational pyhsics; metrology
Abstract
This paper is a complement to the two short papers published in 2001 and 2013 in which we presented the results of the two BIPM determinations of the Newtonian constant of gravitation G. While this review contains no new results, it includes more detailed descriptions of certain key parameters that enter into the determination of G. Following a description of the overall method and the two versions of the experiment, we discuss the properties of the torsion strip, including the effects of anelasticity, then the electrostatic torque transducer, the source and test masses, dimensional metrology, angle measurement, the calculation and measurement of the moment of inertia, calculation of the torque, possible magnetic interactions and finally we discuss uncertainties and correlations in the derivation of a value for G.
Publication date
In
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2026, 20140032 (8 September 2014).
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number21274108
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Record identifier8ddda387-27ed-4aa3-9f2a-d2bc4a6aa012
Record created2015-02-13
Record modified2020-04-22
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