Title :
Impedance measurements with Programmable Josephson Systems
Author :
Lee, Jinni ; Schurr, Jürgen ; Nissilä, Jaani ; Palafox, Luis ; Behr, Ralf
Author_Institution :
Phys.-Tech. Bundesanstalt (PTB), Braunschweig, Germany
Abstract :
Arbitrary impedance ratios can be determined with high accuracy by means of a programmable Josephson system. For a 1:1 resistance ratio at 10-kΩ level we demonstrate that the novel system allows measurements over a wide frequency range from 25 Hz to 10 kHz. Uncertainties are in the range of a few parts in 108 and thus comparable to those of conventional impedance bridges.
Keywords :
electric impedance measurement; measurement standards; arbitrary impedance ratios; frequency 25 Hz to 10 kHz; impedance bridges; impedance measurements; programmable Josephson systems; programmable Josephson systemsJosephson voltage standards; resistance 10 kohm; Bridge circuits; Electrical resistance measurement; Electromagnetic measurements; Frequency measurement; Impedance measurement; Josephson junctions; Measurement standards; Metrology; Power system transients; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5543389
