Vertical displacement determination of a levitated superconducting mass

IEEE Transactions on Instrumentation and Measurement

Volumn 48, Issue 2, 1999, Pages 200-204

  Fujii, Yusaku ^a   Shiota, Fuyuhiko ^a   Miki, Yukinobu ^a   Nakayama, Kan ^a   Morokuma, Tadashi ^b  

^a NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY AIST   (Japan)

^b OLYMPUS CORPORATION   (Japan)

Author keywords

Center of gravity; Fundamental constants; Least squares methods; Mass standard; Optical variables measurement; Position measurement; Superconducting devices; Superconducting materials; Vertical displacement

Indexed keywords

EID: 0000208904     PISSN: 00189456     EISSN: None     Source Type: Journal    
DOI: 10.1109/19.769563     Document Type: Article

References (8)

1. D.B. Sullivan and N. V. Frederick, "Can superconductivity contribute to the determination of the absolute ampere?," IEEE Trans. Magn., vol. MAG-13, pp. 396-399, 1977.
2. K. Hara, F. Shiota, and T. Kubota, "A feasibility study of an absolute determination of the magnetic flux quantum," in Precision Measurement and Fundamental Constants II, B. N. Taylor and W. D. Phillips, Eds. Washington, DC: Government Printing Office, 1984, pp. 479-480.
3. E.T. Frantsuz, Yu. D. Gorchakov, and V. M. Khavinson, "Measurements of the magnetic flux quantum, plank constant, and elementary charge at VNIIM," IEEE Trans. Instrum. Meas., vol. 41, pp. 482-485, Aug. 1992.
4. F. Shiota, Y. Miki, A. Namba, Y. Nezu, Y. Sakamoto, T. Morokuma, and K. Hara, "Absolute determination of the magnetic flux quantum using superconducting magnetic levitation," IEEE Trans. Instrum. Meas., vol. 44, pp. 583-586, Apr. 1995.
5. F. Shiota, Y. Miki, Y. Fujii, T. Morokuma, and Y. Nezu, "Improvements of NRLM superconducting magnetic levitation system for absolute determination of $0," in CPEM'98 Dig., Washington, DC, July 1998, pp. 235-236.
6. -6 for use in a superconducting magnetic levitation system," IEEE Trans. Instrum. Meas., vol. 46, pp. 609-612, Apr. 1997.
7. V.M. Khavinson and E. T. Frantsuz, "Measuring the vertical displacements of the center of gravity of a levitated superconducting body," Metrologia, vol. 31, pp. 1-7, 1994.
8. Y. Fujii, F. Shiota, Y. Miki, T. Morokuma, S. Kai, and K. Hara, "Attitude and position measurement system for use in a superconducting magnetic levitation system," in Proc. XIV IMEKO World Congr., Tempere, Finland, June 1997, vol. IXA, pp. 31-36.