• DocumentCode
    1457456
  • Title

    A buoyancy-free mass comparator with precision better than 10-6 for use in a superconducting magnetic levitation system

  • Author

    Fujii, Yusaku ; Shiota, Fuyuhiko ; Miki, Yukinobu ; Nezu, Yoshiaki ; Makishita, Go ; Hara, Ko

  • Author_Institution
    Nat. Res. Lab. of Metrol., Ibaraki, Japan
  • Volume
    46
  • Issue
    2
  • fYear
    1997
  • fDate
    4/1/1997 12:00:00 AM
  • Firstpage
    609
  • Lastpage
    612
  • Abstract
    A system for measuring mass without the necessity of correcting for the buoyancy of air with a relative standard uncertainty better than 10-6 has been developed. The system is intended for use in determining the mass of the floating body in the superconducting magnetic levitation system
  • Keywords
    magnetic levitation; mass measurement; measurement errors; measurement standards; superconducting devices; vacuum techniques; National Research Laboratory of Metrology; buoyancy of air; buoyancy-free mass comparator; floating body mass determination; low pressure He environment; mass measurement; mass stability; relative standard uncertainty; superconducting magnetic levitation system; vacuum balance; vacuum weighing; Atmospheric measurements; Density measurement; Helium; Laboratories; Magnetic levitation; Magnetic materials; Measurement standards; Superconducting materials; Temperature; Uncertainty;
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/19.571935
  • Filename
    571935