DocumentCode
236383
Title
Progress on flux measurement with Josephson system at NIM
Author
Zengmin Wang ; Yuan Gao ; Honghui Li
Author_Institution
Nat. Inst. of Metrol., Beijing, China
fYear
2014
fDate
24-29 Aug. 2014
Firstpage
454
Lastpage
455
Abstract
A new record of magnetic flux measurement of 1 Wb with the type A uncertainty of less than 1 ppm was presented, which is an improvement over the result that was achieved with our previous magnetic flux measurement circuit with Josephson system. The flux difference measured between the rectangular pulse synthesized with the Josephson system and the flux under test (around 1 Wb) is less than 4 mWb, which significantly reduces the impact of the flux meter reading error on the measurement results.
Keywords
Josephson effect; fluxmeters; magnetic flux; magnetic variables measurement; measurement errors; measurement uncertainty; Josephson system; NIM; flux meter reading error; magnetic flux measurement circuit; measurement error; measurement uncertainty; rectangular pulse synthesis; Coils; Current measurement; Inductance; Inductance measurement; Magnetic flux; Measurement uncertainty; Pulse measurements; Flux measurement; Josephson voltage standard; Mutual inductance;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location
Rio de Janeiro
ISSN
0589-1485
Print_ISBN
978-1-4799-5205-2
Type
conf
DOI
10.1109/CPEM.2014.6898455
Filename
6898455
Link To Document