Title :
Quadrature bridge for the comparison of quantum Hall resistors with capacitors
Author :
Melcher, J. ; Schumacher, B.
Author_Institution :
Physikalisch Tech. Bundesanstalt, Braunschweig, Germany
fDate :
June 27 1994-July 1 1994
Abstract :
A quadrature bridge for the comparison of two quantized Hall resistances R/sub H/(2)=12906.4035 /spl Omega/ and two 10 nF capacitances is described The bridge was designed for a high-precision determination of the von Klitzing constant in SI units, based on a realisation of the farad via the Thompson-Lampard capacitor.<>
Keywords :
bridge circuits; bridge instruments; capacitance measurement; capacitors; constants; electric resistance measurement; measurement standards; quantum Hall effect; resistors; units (measurement); 10 nF; 12906.4035 ohm; SI units; Thompson-Lampard capacitor; farad; high-precision determination; measurement units; ohm; quadrature bridge; quantum Hall resistors; von Klitzing constant; Bridge circuits; Cables; Capacitance; Capacitors; Resistors; Stability; Temperature; Testing; Uncertainty; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on
Conference_Location :
Boulder, CO, USA
Print_ISBN :
0-7803-1984-2
DOI :
10.1109/CPEM.1994.333428
