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Linking Air and Vacuum Mass Measurement by Magnetic Levitation



Zeina J. Kubarych, Patrick J. Abbott, Edwin R. Williams, Ruimin Liu, Vincent J. Lee, Hung-Kung Liu


This paper describes a new approach to directly link air and vacuum mass measurements using magnetic levitation techniques. This procedure provides direct traceability to national standards, presently defined in air, without requiring the estimate of surface effects presently used to evaluate vacuum artifacts. We describe the basic principles, challenges, initial modeling calculations, and performance expectations.


Kilogram, SI Unit, Magnetic Levitation, Mass Standards, Redefinition of Kilogram, Traceability, Vacuum Mass Metrology


Kubarych, Z. , Abbott, P. , Williams, E. , Liu, R. , Lee, V. and Liu, H. (2009), Linking Air and Vacuum Mass Measurement by Magnetic Levitation, Metrologia (Accessed February 19, 2024)
Created May 12, 2009, Updated February 19, 2017