23rd IMEKO TC 4 International Symposium and the 5th Chinese Conference on Electromagnetic Metrology Technical (IMEKO TC4 2019)

171 / 2019-03-17 20:04:00

Applications of Programmable Josephson Voltage Standard on Magnetic Measurements

Magnetic flux, Mutual Inductance, Josephson Voltage Standard, Flux meter calibration.

Plenary track > Calibration, Metrology and Standards

This paper describes the progress of magnetic applications on Programmable Josephson Voltage Standard (PJVS) at NIM. In past few years, we developed a PJVS based magnetic flux measurement system [1] and continued improving the magnetic flux and the mutual inductance measurement accuracy. This paper introduces the automatic flux and mutual inductance measurement system that we developed. Experimental results show that the type A uncertainty of the measurement of mutual inductances of 577 mH is less than 2 ppm, which demonstrates the feasibility and reliability of the flux and mutual inductance measurement system we proposed.