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Stable 1 volt programmable voltage standard
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DOI：10.1063/1.120189.png)
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Abstract
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Several fully functional programmable voltage standard chips, each having a total of 32 768 Nb-PdAu-Nb Josephson junctions, have been fabricated and tested. The chips are based on a new design that provides fast programmability (1 mu s) between voltages and stable voltage operation from -1 to +1 V. A comparison of the new standard with a conventional Josephson voltage standard is in agreement to 0.5 +/- 1.1 parts in 10(9). We demonstrate the utility of this standard by measuring the linearity of a digital voltmeter. (C) 1997 American Institute of Physics.
Keywords:
JOSEPHSON
JUNCTIONS
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