Title :
The European ACQHE project: modular system for the calibration of capacitance standards based on the quantum Hall effect
Author :
Melcher, J. ; Schurr, J. ; Pierz, K. ; Williams, J.M. ; Giblin, S.P. ; Cabiati, F. ; Callegaro, L. ; Marullo, G.C. ; Cassiago, C. ; Jeckelmann, B. ; Jeanneret, B. ; Overney, Frederic ; Bohacek, J. ; Riha, J. ; Power, O. ; Murray, J. ; Nunes, M. ; Lobo, M.
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
Starting in 1998 a project funded by the European Commission has been carried out in a co-operation of seven partners. The aim of this project was to establish a measurement system which allows the calibration of standard capacitors in terms of R/sub K-90/. The whole system comprises suitable quantum Hall samples, an automated bridge system and auxiliary devices to calibrate and characterize the whole set-up. The uncertainty for the calibration of a 10-pF capacitor is about 1 part in 10/sup 7/.
Keywords :
Hall effect devices; bridge instruments; calibration; capacitance measurement; measurement standards; measurement uncertainty; quantum Hall effect; 10 pF to 10 nF; ACQHE project; R/sub K-90/ capacitance measurement system; automated bridge system; capacitance standard modular calibration system; capacitor calibration uncertainty; quantum Hall effect; quantum Hall samples; system calibration/characterization; Calibration; Capacitors; Conductivity measurement; Electrical resistance measurement; Frequency measurement; Hall effect; Laboratories; Power cables; Quantum capacitance; Shape measurement;
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.2002.1034816
