Title :
The European ACQHE project: modular system for the calibration of capacitance standards based on the quantum Hall effect
Author :
J. Melcher;J. Schurr;K. Pierz;J.M. Williams;S.P. Giblin;F. Cabiati;L. Callegaro;G. Marullo-Reedtz;C. Cassiago;B. Jeckelmann;B. Jeanneret;F. Overney;J. Bohacek;J. Riha;O. Power;J. Murray;M. Nunes;M. Lobo;I. Godinho
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
A project funded by the European Commission which started in 1998 has been completed. The aim of this project was to establish a measurement system that allows the calibration of standard capacitors in terms of R/sub K-90/. The whole system comprises quantum Hall samples, an automated modular bridge system, and devices to calibrate and characterize the set-up. The uncertainty for the calibration of a 10-pF capacitor is about one part in 10/sup 7/.
Keywords :
"Calibration","Quantum capacitance","Hall effect","Electrical resistance measurement","Shape measurement","Frequency measurement","Measurement standards","Capacitors","Laboratories","Metrology"
Journal_Title :
IEEE Transactions on Instrumentation and Measurement
DOI :
10.1109/TIM.2003.810731
