Title :
Automated quantum Hall-resistance standard
Author :
Schumacher, Bernd
Author_Institution :
Physikalisch Tech. Bundesanstalt, Braunschweig, Germany
fDate :
4/1/1995 12:00:00 AM
Abstract :
For precision quantized Hall resistance measurements, quantum Hall effect samples have to be checked according to the guidelines of the Comite Consultatif d´Electricite. An automated measuring system used to perform these checks is described, which is able to examine and characterize various samples. Together with these measurements, a precision 10 kΩ resistance standard is calibrated with an uncertainty of better than 5·10-8 (1 σ) using a long-scale digital multimeter
Keywords :
digital instrumentation; electric resistance measurement; measurement standards; quantum Hall effect; 10 kohm; Comite Consultatif d´Electricite; automated measuring system; calibration; long-scale digital multimeter; measurement uncertainty; quantum Hall-resistance standard; resistance measurements; Digital relays; Electrical resistance measurement; Guidelines; Hall effect; Linearity; Magnetic field measurement; Measurement standards; Performance evaluation; Superconducting magnets; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
