Title :
Correction of Systematic Errors Due to the Voltage Leads in an AC Josephson Voltage Standard
Author :
Filipski, Piotr S. ; Kinard, Joseph R. ; Lipe, Thomas E. ; Tang, Yi-hua ; Benz, Samuel P.
Author_Institution :
Nat. Res. Council, Ottawa, ON
fDate :
4/1/2009 12:00:00 AM
Abstract :
The National Institute of Standards and Technology (NIST) has recently reported the first application of a quantum ac Josephson voltage standard for the calibration of thermal transfer standards in the 1- to 10-kHz frequency range. This paper describes preliminary work on extending its frequency calibration range up to 100 kHz by correcting the systematic errors due to voltage leads. A ground loop created by the dc blocks, which is a previously unaccounted source of high-frequency systematic error, has been identified, and its effects are partially mitigated.
Keywords :
calibration; measurement errors; measurement standards; superconducting junction devices; voltage measurement; AC Josephson voltage standard; dc blocks; ground loop; high-frequency systematic error; systematic errors correction; thermal transfer standards calibration; Josephson arrays; quantization; quantum-based standard; signal synthesis; standards; superconductor–normal–superconductor devices; superconductor–normal–superconductor devices; voltage measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2008.2008086
