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4. Current measurement traceability
4.1 Traceability to the International System of Units (SI)
At present, the Josephson effect makes it possible to trace DC voltages of between a few hundred mV and ten V to the SI, with an uncertainty of the order of a few 10 -7 . The quantum Hall effect, meanwhile, enables resistors to be connected to the SI, again with an uncertainty of a few 10 -7 . By applying Ohm's law, we can determine the intensity...
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Current measurement traceability
Conclusion
Bibliography
Standards and norms
- Appareils mesureurs électriques indicateurs analogiques à action directe et leurs accessoires. Partie 1 : Définitions et prescriptions générales communes à toutes les parties. - NF EN 60051-1 - Avril 1999
- Appareils mesureurs électriques indicateurs analogiques à action directe et leurs accessoires. Partie 2 : Prescriptions particulières pour les ampèremètres et les voltmètres. - NF EN 60051-2 - Février 1990 ...
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