The functional constraints driving the design of the new permanent-magnet driven watt balance (NIST-4) outline the variables and compromises worthy of addressing. Construction according to these design parameters will demonstrate the high precision capabilities of a large complex mass measurement system with overall uncertainties on the order of 3 parts in 108.
Proceedings Title: ASPE Annual Meeting Proceedings
Conference Dates: October 21-25, 2013
Conference Location: St. Paul, MN
Conference Title: ASPE Annual Meeting
Pub Type: Conferences
watt balance, mass, kilogram, wheel, flexure, SI unit, redefine, magnet