Comparison of the Josephson Voltage Standards of the PTB and the BIPM
نویسندگان
چکیده
A comparison of the Josephson array voltage standards of the Bureau International des Poids et Mesures (BIPM) and the Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany, was carried out in October 2014 at the level of 10 V. For this exercise, options A and B of the BIPM.EM-K10.b comparison protocol were applied. Option B required the BIPM to provide a reference voltage for measurement by PTB using its Josephson standard with its own measuring device. Option A required PTB to provide a reference voltage with its Josephson voltage standard for measurement by the BIPM using a analogue nanovoltmeter and associated measurement loop. The final results were in good agreement within the combined relative standard uncertainty of 3.9 parts in 10 for the nominal voltage of 10 V.
منابع مشابه
Comparison of the Josephson Voltage Standards
A comparison of the 10 V Josephson array voltage standard of the Bureau International des Poids et Mesures (BIPM) was made with that of the National Institute of Standards and Technology (NIST), USA, in March 2009. For this exercise, three different measurement methods were carried out: the two different options of the BIPM.EM-K10.b comparison protocol as well as the measurement protocol applie...
متن کاملBilateral direct comparison of Josephson Array Voltage Standards of the PTB (Germany) and PEL (Croatia)
A comparison of the 10 V Josephson array voltage standard of the PhysikalischTechnische Bundesanstalt (PTB), Germany, was made with that of the Primarni elektromagnetski laboratorij (PEL), Croatia, in April 2007. The results are in very good agreement and the measured overall relative combined standard uncertainty is better than 1 part in 10.
متن کاملRapport BIPM-2011/05: The BIPM 1.018 V Zener Measurement Set-up
A new measurement set-up for calibration of secondary DC voltage standards at the level of 1.018 V has been developed by the Bureau International des Poids et Mesures (BIPM). A metrological validation process was developed to ensure the correct operation of the new set-up and to demonstrate its consistency with the previous set-up. Firstly, a direct comparison of two primary voltage standards s...
متن کاملJosephson Voltage Standard Comparison Automation
To ensure the uniformity of the representation of the volt based on KJ-90, a series of key comparisons have been carried out by the Bureau International des Poids et Mesures (BIPM) under the auspices of the Consultative Committee for Electricity and Magnetism (CCEM) using the BIPM.EM.K10 Technical Protocols Option A and Option B for the Josephson Voltage Standards (JVS) operated by National Met...
متن کامل