Musings on the use of a bifilar suspension in the measurement of G

Authors
Luther, GG
Citation
Gg. Luther, Musings on the use of a bifilar suspension in the measurement of G, MEAS SCI T, 10(6), 1999, pp. 426-429
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
MEASUREMENT SCIENCE & TECHNOLOGY
ISSN journal
09570233 → ACNP
Volume
10
Issue
6
Year of publication
1999
Pages
426 - 429
Database
ISI
SICI code
0957-0233(199906)10:6<426:MOTUOA>2.0.ZU;2-V
Abstract
Torsion balances and torsion pendulums have been associated with the measur ement of the Newtonian gravitational constant from Cavendish through Eotvos and Heyl. The usual suspension consists of a single fine fibre supporting the small test mass, ordinarily a dumbbell of some type. Problems with this system an discussed and some of the advantages of using a bifilar suspensi on are posited.