| Title | Improving the performance of the force comparator in a watt balance based on pressure balances |
| Publication Type | Conference Paper |
| Year of Publication | 2012 |
| Authors | Sutton, C.M., Fitzgerald M.P., and Carnegie K. |
| Conference Name | CPEM Digest (Conference on Precision Electromagnetic Measurements) |
| Date Published | 2012 |
| Keywords | Comparators (optical), Electromagnetic forces, Electromagnetism, Force comparator, Gravitation, Gravitational forces, Measurement standards, Planck constants, Precision balances, Pressure balance, Twin pressure balance, Watt balance |
| Abstract | A watt balance based on pressure balances has been proposed for a measurement of the Planck constant and for a non-artefact realisation of the kilogram. This watt balance uses twin gas-operated pressure balances as the force comparator to compare the gravitational force on a test mass with the electromagnetic force on a current-carrying coil in a magnetic field. In this paper the results of initial trials with a twin pressure balance as a mass/force comparator are presented and ways of improving this performance are investigated. The focus is on reducing the damping in the force comparator. © 2012 IEEE. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84866781491&partnerID=40&md5=580451f5e22e564d70466e463ff0420d |
| DOI | 10.1109/CPEM.2012.6251006 |
