NOVEL TORSION BALANCE FOR THE MEASUREMENT OF THE NEWTONIAN GRAVITATIONAL CONSTANT

Authors
QUINN TJ SPEAKE CC DAVIS RS
Citation
Tj. Quinn et al., NOVEL TORSION BALANCE FOR THE MEASUREMENT OF THE NEWTONIAN GRAVITATIONAL CONSTANT, Metrologia, 34(3), 1997, pp. 245-249
Citations number
16
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
Journal title
Metrologia → ACNP
ISSN journal
00261394
Volume
34
Issue
3
Year of publication
1997
Pages
245 - 249
Database
ISI
SICI code
0026-1394(1997)34:3<245:NTBFTM>2.0.ZU;2-O
Abstract
We report on the design and preliminary performance of a novel torsion balance for the measurement of the Newtonian gravitational constant. The design takes advantage of the properties of a wide, heavily loaded torsion strip to enhance the ratio of gravitational signal-to-noise t orques beyond that achievable by the traditional Cavendish torsion bal ance. The results of preliminary experiments suggest that an accuracy of 1 part in 10(4) should be possible.