Next generation of quantum voltage systems for wide range applications

Short Name: JOSY, Project Number: T4.J03
Coordinator
The deployment of micro-electronic circuits for measurement and control applications in commercial devices and systems is ever increasing. Such control systems, in combination with state of the art sensors, have enabled large advances in both the performance and efficiency of mass-produced items. For example, electronic management systems in electrical motors have led directly to reduced energy consumption and, as a consequence, improved economy and reduced emissions to the atmosphere.

These leading-edge control systems rely on high performance electronic components including analogue to digital converters (ADCs), digital to analogue converters (DACs) and amplifiers. The systems are almost entirely digital and operate with harmonically complex waveforms. Ultimately, the end-to-end performance of the ADC, signal processing and DAC combinations has to be repeatable and reliable. High-resolution, repeatable electronic test equipment plays a crucial role during the development and testing phases.

Such repeatable and high-resolution measurements can be achieved only through accurate measurements obtained by calibration traceable to the SI. The main objective of this project is to introduce quantum-based measurement systems into AC metrology.

Publications
Josephson arbitrary waveform synthesizer for analysis of AC components
2010

2010 Conference on Precision Electromagnetic Measurements digest

Minimizing voltage lead corrections for a pulse-driven Josephson voltage standard
2010

2010 Conference on Precision Electromagnetic Measurements digest

Precision AC-DC transfer measurements with a Josephson waveform synthesizer and a buffer amplifier
2010

2010 Conference on Precision Electromagnetic Measurements digest

Investigations using an improved Josephson arbitrary waveform synthesizer (JAWS) system
2010

2010 Conference on Precision Electromagnetic Measurements digest

Josephson-voltage-standard-locked sine wave synthesizer: implementation and preliminary results
2010

2010 Conference on Precision Electromagnetic Measurements digest

Impedance measurements with programmable Josephson systems
2010

2010 Conference on Precision Electromagnetic Measurements digest

Binary-divided arrays with intrinsically overdamped Nb/Al-AlOx/Nb (SNIS) junctions at 70GHz
2010

2010 Conference on Precision Electromagnetic Measurements digest

A way for increasing the accuracy of AC-PJVS
2010

2010 Conference on Precision Electromagnetic Measurements digest

Inductance measurements of Josephson arrays
2010

2010 Conference on Precision Electromagnetic Measurements digest

Double Josephson waveform synthesizer for high precision ac-dc transfer measurement
2010

2010 Conference on Precision Electromagnetic Measurements digest

Operation of the AC quantum voltmeter at khz frequency
2010

2010 Conference on Precision Electromagnetic Measurements digest

Modeling and Measuring Error Contributions in Stepwise Synthesized Josephson Sine Waves
2009

IEEE Transactions on Instrumentation and Measurement

Transition shape effect in the transients generated by a programmable Josephson voltage standard
2009

2010 Conference on Precision Electromagnetic Measurements digest