Title :
A room temperature setup to compare the quantized Hall resistance with 1-Ω standards
Author :
Boella, Giorgio ; Reedtz, G. Marullo
Author_Institution :
Istituto Elettrotechnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
2/1/1992 12:00:00 AM
Abstract :
A method has been developed to relate the mean value of the Istituto Elettrotechnico Nazionale Galileo Ferraris (IEN) primary group of 1-Ω standard resistors to the i=2 quantum level of the Hall resistance. It is based on an automated potentiometric system, a 36×360-Ω Hamon network, and a commercial Kusters current comparator bridge. Descriptions of the equipment and of the measurement technique are given, together with a detailed uncertainty budget. The typical fractional total uncertainty of the measurement at the 1-σ level is 5×10-8
Keywords :
computerised instrumentation; electric resistance measurement; measurement standards; quantum Hall effect; 1 ohm; 20 degC; 27 degC; Hamon network; Istituto Elettrotechnico Nazionale Galileo Ferraris; Kusters current comparator bridge; automated potentiometric system; fractional total uncertainty; mean value; quantized Hall resistance; room temperature; standard resistors; uncertainty budget; Bridges; Detectors; Electrical resistance measurement; Electrons; Helium; Magnetic field measurement; Measurement uncertainty; Resistors; Standards development; Temperature;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
