직류 전압/저항 비율 초정밀 측정기술

Precision Measurement Technique of DC Voltage/Resistance Ratio

  • 발행 : 2002.03.01

초록

We developed 1:1 resistance ratio measurement system for precision measurement of a series-resistor type dc voltage divider. By using active guard technique and exchange technique, any leakage effects, which are one of the most critical error sources, were successfully removed. The best measurement uncertainty with the developed ratio measurement system was estimated to be approximately $10^{-8}\;for\;10\;k{\Omega}\;and\;100\;k{\Omega}$.

키워드

참고문헌

  1. 국제단위계, 제7 개정판, KRISS-99-101-SP,1999
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  3. L. Bliek et al., 'Measurements of the quantized Hall resistance h/e2 with a reproducibility of 10-8 and its application for a novel determination of the ohm,' PTB-Mitt., vol.93, pp.19-20 and pp.44-45, 1988
  4. K.-T. Kim, S.I. Park, Y.M. Cho and S.-W. Kwon, 'Common error sources in using a series-resistors type voltage divider below level of 0.01 ppm,' IEEE Trans. Instrum. Meas., vol.44, pp. 318-321, Apr. 1995
  5. ISO, 'Guide to the expression of uncertainty in measurements,' 1991
  6. ISO 'Guide to the expression of uncertainty in measurements,' 1991