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A 10 V Josephson Voltage Standard Comparison Between NIST and INMETRO as a Link to BIPM.
- Source :
- IEEE Transactions on Instrumentation & Measurement; Jun2011, Vol. 60 Issue 7, p2353-2358, 6p
- Publication Year :
- 2011
-
Abstract
- This paper describes a 10 V Josephson Voltage Standard (JVS) direct comparison between the National Institute of Standards and Technology (NIST) and the Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (INMETRO) using automatic data acquisition. The results were in agreement to within 1.1 nV and the mean difference between the two JVSs at 10 V is 0.54 nV with a pooled combined standard uncertainty of 1.48 nV. Considering a recent JVS comparison between NIST and the Bureau International des Poids et Mesures (BIPM), the difference between INMETRO and the BIPM thus was found to be -0.26 nV with a standard uncertainty of 1.76 nV. INMETRO JVS improvements since the 2006 INMETRO-BIPM comparison are also described. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189456
- Volume :
- 60
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Instrumentation & Measurement
- Publication Type :
- Academic Journal
- Accession number :
- 61129105
- Full Text :
- https://doi.org/10.1109/TIM.2010.2099370