NIST has developed and implemented a new Programmable Josephson Voltage Standard (PJVS) that operates at 10 V. This next-generation system is optimized for both dc metrology and stepwise-approximated ac voltage measurements for frequencies up to a few hundred hertz. The non-hysteretic Josephson junctions produce intrinsically stable voltages and are designed to operate in the 18-20 GHz frequency range. The most recent 10 V PJVS circuits have produced intrinsically stable voltages with combined current ranges greater than 1 mA.
Citation: IEEE Transactions on Instrumentation and Measurement
Pub Type: Journals
Digital-analog conversion, Josephson arrays, Quantization, Signal synthesis, Standards, Superconductor-normal-superconductor devices, Voltage measurement, Power Measurement