Calibration of high-voltage current-comparator-based capacitance and dissipation factor bridges using nonsynchronous digital sampling

A new calibration system for automated high-voltage current-comparator-based capacitance and dissipation factor bridges is presented. It does not require synchronization circuits between the digitizers and the generators. It is possible to simulate 1:1 capacitance ratio and dissipation factors from 1
^.
10
^-6
with standard uncertainties of less than to 1
^.
10
^-1
with standard uncertainties of less than 1
^.
10
^-5
.