Measurement and reduction of alignment errors of the NIST watt experiment

A. Gillespie, K. Fujii, D. Newell, P.T. Olsen, A. Picard, R. Steiner, G. Stenbakken, E. Williams
Proceedings of 20th Biennial Conference on Precision Electromagnetic Measurements  
The effects of uncertainties in the alignment of the NIST watt balance with local gravity and the magnetic field of the balance have been analyzed, and techniques for measuring all misalignment parameters have been developed. The systematic uncertainty in the watt measurementdue to alignment has been reduced to 0.04 JlW/W.
doi:10.1109/cpem.1996.547376 fatcat:k4a3pv7eare3bn2picppvi7ida