Title: NIST Develops Quantum Electrical Waveform Metrology for Improved Measurement Accuracy
Summary:
NIST researchers are developing advanced quantum electrical waveform metrology techniques using the Josephson Arbitrary Waveform Synthesizer (JAWS) to improve measurement accuracy in various applications. The JAWS can synthesize audio waveforms with extremely low distortion and uncertainty, enabling more precise electrical measurements.
Key points:
– Quantum electrical standards like the JAWS provide traceability to fundamental constants and reduce measurement uncertainties
– JAWS can synthesize waveforms with distortion as low as parts per billion and uncertainties below parts per million
– NIST is developing custom instrumentation to mitigate systematic errors and improve practical uncertainties
– Applications include data converter calibration, SmartGrid power metrology, ac impedance comparison, and quantum device measurements
The project aims to disseminate the ac quantum volt using JAWS systems, with three currently in use at NIST. Additional systems are being developed to expand the range of applications for quantum-based waveform metrology in various fields.
Source: https://www.nist.gov/programs-projects/quantum-waveform-metrology
Keywords: quantum, electrical, standards, metrology, measurement
