Abstract
This paper describes a method for extending the range of low-voltage ac–dc transfer standards from 100 down to 2 mV using nonreactive resistive voltage dividers (RVDs). A low ratio is chosen for the RVD to avoid variations in the ranges of the thermal transfer standards with amplifiers. The advantage to this method is that a multijunction thermal converter can be used as a reference standard. The results of ac–dc transfer differences determined by RVDs at 2 mV were in good agreement with the results from using micropotentiometers in the frequency range of 10 Hz–1 MHz.
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