by Jeff Gust
Volume 7:5, Sep-Oct 2000
As metrologists are acutely aware, when one transfers a measured value such as resistance, they also transfer a measurement uncertainty that is associated with the calibration of the standard resistor. Most metrologists have done an excellent job in understanding and accounting for the measurement uncertainty associated with the calibration of standard resistors when calibrating lower echelon standards. However, many users of standard resistors are not aware of the additional uncertainty that is added into the calibration process due to some of the fundamental physical characteristics of resistors.
