The quantum vector digital voltmeter of INMETRO

Waldemar G Kuerten Ihlenfeld, Regis P Landim
2016 Journal of Physics, Conference Series  
The paper describes the quantum vector digital voltmeter developed at INMETRO, based on a programmable Josephson voltage synthesizer. The system employs digital regulation for phase-and frequency synchronization of signals, is fully automated and allows calibration of ac sources and analog-to-digital converters with uncertainties bearing some parts of 10 -07 up to frequencies of around 500 Hz.
doi:10.1088/1742-6596/733/1/012079 fatcat:7f2ks4x2uvfu5jdlqirotqp5i4