Direct comparison of Josephson voltage standards at the level of 10 V

doi:10.1088/0026-1394/45/4/008

Direct comparison between a programmable and a conventional Josephson voltage standard at the level of 10 V

S Djordjevic et al 2008 Metrologia 45 429-435 doi: 10.1088/0026-1394/45/4/008

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S Djordjevic¹, O Séron¹, S Solve² and R Chayramy²
¹ Laboratoire National de Métrologie et d'Essais (LNE), 29 Avenue Hennequin, 78197 Trappes Cedex, France
² Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, F-92312 Sèvres Cedex, France

Abstract. A Josephson voltage standard (JVS) from the BIPM, incorporating a PTB 10 V programmable array, has been compared with a JVS from the LNE, operating with a conventional hysteretic array. The metrological characteristics of both JVSs were carefully studied. We report on the experiments performed for this comparison and on the uncertainty components. The final comparison result is (U_PJVS − U_JVS)/U_JVS = −3.2 × 10⁻¹¹ with a relative total combined standard uncertainty of 6.1 × 10⁻¹¹ (k = 1).

Print publication: Issue 4 (August 2008)
Received 24 April 2008
Published 9 July 2008

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Direct comparison between a programmable and a conventional Josephson voltage standard at the level of 10 V

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