2016年9月28日 · The Programmable Josephson voltage standard (PJVS) is an instrument that generates stable, quantum-accurate, direct-current (DC) voltages that are programmable over the range from -10 volts to +10 volts.

2019年12月20日 · One is the Programmable Josephson Voltage Standard (PJVS), which generates user-specified DC voltages from -10 V to 10 V. The other is the Josephson Arbitrary Waveform Synthesizer (JAWS), which generates user-determined AC waves of various shapes (such as the square waves used in digital switching) at 2 V and frequencies of millions of cycles ...

2 天之前 · The programmable JVS (PJVS) system realizes quantum-based DC voltages over the range ±10 V. Audio-frequency waveforms with synthesis frequencies from 10 Hz to 1 MHz and root-mean-square (rms) voltages up to 2 V are synthesized with the Josephson arbitrary waveform synthesizer (JAWS) system.

Abstract—The National Institute of Standards and Technology 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 hundreds of hertz.

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 NIST 10V Compact Josephson Voltage Standard (CJVS) and 2.5V Programmable Josephson Voltage Standard (PJVS) were directly compared at 1.018 V and 2.511 V in February 2007.

The system accurately relates the spectral am-plitudes and phases of the voltage and current waveforms of the generated power to a programmable Josephson voltage standard (PJVS) by using a novel differential sampling technique.

2013年4月4日 · In 2008, NIST power meter calibrations were improved 20-fold when the NIST power and voltage teams developed a new measurement technique that exploited stepwise voltages synthesized by the PJVS. By 2010, the team had arrived at a state-of-the-art 10 V PJVS design for both dc and ac metrology.

2013年8月27日 · Two NIST programmable Josephson voltage standard (PJVS) systems are directly compared at 10 V using different nanovoltmeters. These PJVS systems use arrays of triple-stacked superconducting niobium Josephson …

2011年1月13日 · The National Institute of Standards and Technology 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 hundreds of hertz.