Status of the metas watt balance experiment

Abstract

The Swiss Federal Office of Metrology and Accreditation (METAS) has been continuing to work toward a 100-g watt balance apparatus with an uncertainty of 1 /spl times/10/sup -8/ W/W. Currently the experiment is producing preliminary measurements reproducible at the 1 /spl times/10/sup -6/ W/W level. Our progress, measurements, and plans for the future are presented.