Patent ID: 6930496

Claim:
A method for enhancing high voltage AC measurement accuracy at high frequencies, in a measuring system wherein a multiplier resistor having an elongated body, with an input end receiving high AC voltage under test, is deployed in series with an input terminal of a low voltage measuring instrument, comprising the steps of: providing a primary shield assembly, surrounding the resistor, having an ungrounded conductive portion; connecting the ungrounded conductive portion of the primary shield assembly to the input end of the resistor receiving the high AC voltage under test; and configuring and locating the ungrounded conductive portion of the primary shield assembly relative to the resistor in a manner to enhance AC voltage measurement accuracy at high frequencies by virtue of high frequency compensation of the resistor through neutralization of stray capacitance to ground provided by a resultant pattern of voltage and capacitance gradients along the body of the resistor.