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High Precision Voltage Ratio Measurements Using digital Voltmeters and Resistive Voltage Divider

This paper presents a method to accuratelymeasure voltage ratios from 1:2 to 1:10 with a calibrated digital voltmeter at voltage ranges of 1V and 10V using a simple resistive voltage divider. The divider can be used as an absolute divider or as a Hamon divider. The achieved accuracy is better than 10-7, comparable to those reported with measurements with Josephson Array Voltage Source.

Voltage Ratio Measurement; Digital Voltmeter; Resistive Voltage Divider; Hamon Divider

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