NIST and BIPM Expand Collaboration on Quantum-Based Voltage Standards
The National Institute of Standards and Technology (NIST) and the Bureau International des Poids et Mesures (BIPM) have expanded their collaboration to enhance the precision and reliability of electrical measurements worldwide. This collaboration focuses on Josephson voltage standards, which use quantum-based voltages to calibrate various instruments.
Key Points:
– NIST and BIPM have expanded their comparison program to improve electrical measurements
– The collaboration focuses on Josephson voltage standards, which produce quantum-based voltages
– The BIPM PJVS was tested against NIST’s JAWS, achieving a Type A uncertainty of a few parts in 10^9
– The protocol for this new BIPM comparison was established by a group of CCEM experts
– 21 NMIs expressed interest in participating in the coming years, with 16 interested in AC measurements
– The expanded program aims to combine expertise, enhance measurement reliability, and further harmonize the Josephson voltage standards
The expanded program between NIST and BIPM aims to combine expertise, enhance measurement reliability, and further harmonize the Josephson voltage standards, facilitating a more seamless international framework for electrical measurements. By comparing and validating their respective standards, the two organizations endeavor to eliminate discrepancies and foster a unified approach to measurement accuracy using quantum-based voltage standards.
Keywords: Uncertainty, Josephson, Metrology, Calibration, Standards
