Title :
Determination of standard resistor temperature coefficients
Author_Institution :
Nat. Stand. Dept., Justervesenet, Kjeller, Norway
Abstract :
Theoretical expressions for resistor temperature coefficients /spl alpha/ and /spl beta/ and their uncertainties, as a function of the measurement points, are calculated. An expanded version, where the resistance value R(T/sub ref/) is included in the fit together with /spl alpha/ and /spl beta/, is also derived. Two different approaches are discussed and compared.
Keywords :
electric resistance measurement; measurement standards; measurement uncertainty; measurement points; resistance standards; resistance value; standard resistor; temperature coefficients; uncertainties; Bismuth; Electrical resistance measurement; Equations; Least squares approximation; Least squares methods; Resistors; Temperature control; Temperature dependence; Uncertainty; Wire;
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.2002.1034712
