Title :
Status of the NIST "electronic kilogram" experiment
Author :
Steiner, R.L. ; Newell, D.B. ; Williams, E.R. ; Liu, R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
The National Institute of Standards and Technology (NIST) has rebuilt the apparatus and facilities for the watt balance experiment. The goal is to electronically monitor the SI kilogram at an uncertainty of 10 nW/W. We discuss the design changes and available test results to illustrate the improvements of the system.
Keywords :
mass measurement; measurement standards; monitoring; NIST electronic kilogram experiment; National Institute of Standards and Technology; design changes; electronically monitored SI kilogram; measurement uncertainty; watt balance experiment apparatus; watt balance experiment facilities; Copper; Electric variables measurement; Magnetic fields; NIST; Quantum mechanics; Superconducting coils; Superconducting device noise; System testing; Uncertainty; Wheels;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034979
