Design and Error Analysis of High-Accuracy DC Voltage-Measuring Systems

A systematic analysis of the errors inherent in the application of a resistance voltage divider to the measurement of high voltages is presented. The effects of potentiometer errors, leakage errors, and rod resistance are considered in turn. A newly developed high accuracy volt box providing output voltages of 0.5 v, 1.0 v, and 1.5 v for all input voltages ranging from 1.5 to 1600 v in steps of 0.5 v is then described.