Title :
The NBS Absolute Ampere Experiment
Author :
Olsen, Paul T. ; Bower, Vincent E. ; Phillips, William D. ; Williams, Edwin R. ; Jones, George R.
fDate :
6/1/1985 12:00:00 AM
Abstract :
We have constructed a current balance with superconducting field coils for the realization of the SI ampere by comparing mechanical to electrical work. The estimated ultimate accuracy of the realization is 0.1 ppm. We describe and present preliminary results obtained with a room temperature version of the apparatus.
Keywords :
Current measurement; Electric resistance; Electric variables measurement; Force measurement; Frequency measurement; Laboratories; NIST; Superconducting coils; Temperature; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1985.4315295
