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APPLICATION OF ACTIVE COMPENSATED FOUR-COAXIAL CABLES TO AC RESISTANCE STANDARDS COMPARISON

F. Cabiati, V. D'Elia
  • Abstract:
    The general features of active connection structures based on four-coaxial cables are summarised and their application to four-port resistance standards to allow them to be compared by means of a conventional transformer bridge is shown. As a test of the measurement method, a comparison between the easurements performed at IEN and at the CTU on a well characterised resistance standard with nominal value equal to the quantised Hall resistance at the i = 2 plateau (12 906,4 W) has been carried out. Some details about the eference resistor, the calculable resistors and the measuring systems are reported together with the results of the comparison.
  • Keywords:
    impedance measurement, multiconductor coaxial cable, ac standard resistor
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  • DOI:
    _unreg_tc4-symp-2002.106

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