Title :
DC voltage divider calibration system at NMIJ
Author :
Sakamoto, Yasuhiko ; Fujiki, Hiroyuki
Author_Institution :
Nat. Metrol. Inst. of Japan/Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan
fDate :
4/1/2003 12:00:00 AM
Abstract :
A system to self-calibrate a DC voltage divider with increment taps up to 1 kV has been developed. During self-calibration, the divider is grounded and is powered at the same level as it is when in normal use. A reference divider self-calibrated by this method is used as a standard to calibrate other dividers at NMIJ. Typical relative uncertainty is 3×10-7 for 1000 V/10 V and 2×10-7 for 100 V/10 V (k=2, confidence level of 95%).
Keywords :
calibration; leakage currents; measurement standards; measurement uncertainty; voltage dividers; voltage measurement; 1 kV; DC voltage divider calibration system; NMIJ; grounding; increment taps; leakage currents; leakage effect correction; reference divider; self-calibration; standard; uncertainty; Calibration; Circuits; Current measurement; Electrical resistance measurement; Grounding; Insulation life; Leakage current; Metrology; Power supplies; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.811568
