• DocumentCode
    236162
  • Title

    Precision 10∶1 capacitance ratio measurement using a Josephson impedance bridge

  • Author

    Palafox, L. ; Behr, R. ; Schurr, Jurgen ; Kibble, Bryan

  • Author_Institution
    Phys.-Tech. Bundesanstalt, Braunschweig, Germany
  • fYear
    2014
  • fDate
    24-29 Aug. 2014
  • Firstpage
    232
  • Lastpage
    233
  • Abstract
    Josephson impedance bridges have been reported to provide uncertainties close to that from the best conventional bridges when comparing 1:1 impedance ratios. For a 10:1 capacitance ratio (100 pF to 10 pF) a type A uncertainty accuracy of a few parts in 107 has been achieved with 1-V programmable Josephson arrays. The accuracy can be significantly improved when using 10-V Josephson arrays. Preliminary measurements are also presented with type A uncertainties at the level of parts in 108 (k = 1).
  • Keywords
    Josephson effect; bridge circuits; capacitance measurement; electric impedance measurement; programmable circuits; Josephson impedance bridge; capacitance 100 pF to 10 pF; capacitance ratio measurement; programmable Josephson array; voltage 1 V; voltage 10 V; Bridge circuits; Capacitance; Frequency measurement; Impedance; Impedance measurement; Standards; Uncertainty; Josephson array; impedance; programmable Josephson system;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
  • Conference_Location
    Rio de Janeiro
  • ISSN
    0589-1485
  • Print_ISBN
    978-1-4799-5205-2
  • Type

    conf

  • DOI
    10.1109/CPEM.2014.6898344
  • Filename
    6898344
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=236162