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Determination of 2e/h at the B.I.P.M.

  • T. J. Witt
  • D. Reymann

Abstract

Determinations of 2e/h have been made at the Bureau International des Poids et Mesures (B.I.P.M.) since February 1974 by means of the ac Josephson effect. In order to compare our results with those of another laboratory with an accuracy surpassing the several parts in 107 obtainable by transporting standard cells and in order to check for systematic errors, we transported the critical components of our measuring system to the Physicalisch-Technische Bundesanstalt (P.T.B.), Braunschweig and made 2e/h measurements there.

Keywords

Josephson Junction Standard Cell Josephson Effect Random Uncertainty Leakage Resistance 
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References

  1. [1]
    Finnegan, T. F., Denenstein, A., and Langenberg, D. N., Phys. Rev. B4, 1487 (1971).ADSCrossRefGoogle Scholar
  2. [2]
    Finnegan, T. F. and Denenstein, A., Rev. Sci. Instr., 44, 944 (1973).ADSCrossRefGoogle Scholar
  3. [3]
    Wenner, F., J. Res. Nat. Bur. Std., 25, 253 (1940).Google Scholar
  4. [4]
    Page, C. H., J. Res. Nat. Bur. Std., 69C, 181 (1965).Google Scholar
  5. [5]
    Leclerc, G., Rapport sur la 13e Comparaison des Etalons Nationaux de Force Electromotrice (janvier-avril 1973 ) (Bureau International des Poids et Mesures, Pavillon de Breteuil, Sèvres, France), [ 1975 ].Google Scholar
  6. [6]
    Kose, V., Melchert, F., Engelland, W., Fack, H., Fuhrmann, B., Gutmann, P., and Warnecke, P., IEEE Trans. Instr. Meas., IM-23, 271, 1974.Google Scholar

Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • T. J. Witt
    • 1
  • D. Reymann
    • 1
  1. 1.Pavillon de BreteuilBureau International des Poids et MesuresSèvresFrance

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