Title :
A Magnetic Levitation Technique for the Simultaneous Comparison of Mass Artifacts in Air and Vacuum
Author :
Jabbour, Zeina ; Abbott, Patrick J. ; Liu, Ruimin ; Williams, Edwin
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD
fDate :
4/1/2009 12:00:00 AM
Abstract :
We describe a mass comparison system in which a test mass artifact in air can directly be compared to a standard mass artifact in a vacuum using the same high-precision comparator balance. The system uses a magnetic levitation technique to couple the weighing pan of the comparator balance in a vacuum to the test mass in air. We will discuss motivation, design considerations, and preliminary results.
Keywords :
balances; magnetic levitation; mass measurement; measurement standards; high-precision comparator balance; magnetic levitation technique; mass artifacts; mass comparison system; simultaneous air-vacuum measurements; Kilogram; magnetic levitation; mass; vacuum;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2008.2012382
