Title :
Potentiometric calibration of dc voltage- and resistance-ratios up to 1000 V
Author :
Kyu-Tae Kim ; Kwang Min Yu
Author_Institution :
Korea Res. Inst. of Standards & Sci., Taejon, South Korea
Abstract :
1:1 ratio of a divider´s resistance up to 100 k/spl Omega/ at 100 V and 10:1 voltage ratio up to 1 kV can be accurately measured by a potentiometric method. Common-mode potential effect on voltmeter offset is removed by reversing whole divider for high voltage measurement. The best relative measurement uncertainty (k=1) was estimated to be less than 0.02/spl times/10/sup -6/ for 10 V/10 V or 10 k/spl Omega//10 k/spl Omega/.
Keywords :
calibration; high-voltage techniques; measurement standards; measurement uncertainty; potentiometers; voltage measurement; 1 kV; 100 V; 100 kohm; 1000 V; common-mode potential effect; dc voltage-ratios; high voltage measurement; measurement uncertainty; potentiometric calibration; up to 100 k/spl Omega/; up to 1000 V; voltmeter offset; Calibration; Current supplies; Electrical resistance measurement; Measurement standards; Measurement uncertainty; Noise measurement; Resistors; Switches; Voltage measurement; Voltmeters;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.850990
