Title :
The Joule Balance in orogress
Author :
Zhang, Z. ; He, Q. ; Li, Z. ; Han, B. ; Lu, Y. ; Lan, Julong ; Li, Sinan ; Fu, Y.
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
The Joule Balance method, for the same purpose but different from the Watt Balance method, is going on at NIM for several years. The first measurement result of the Planck constant h is 6.6261(5)×10-34Js with a measurement uncertainty of 7.7 × 10-5. The further plan for improvement is discussed.
Keywords :
balances; constants; Joule balance method; NIM; Planck constant; measurement result; Coils; Equations; Force; Helium; Inductance; Inductance measurement; Laser beams; Joule Balance; Watt Balance; mutual inductance; the Planck constant h; uncertainty;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250988
