대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

실온 저항브리지를 이용한 전기저항 측정의 국가표준 기술

National Measurement Standard of Electrical Resistance using a Room Temperature Resistance Bridge

  • 유광민 (한국표준과학연구원 전기.자기그룹) ;
  • 박영태 (한국표준과학연구원 전기.자기그룹) ;
  • 강전홍 (한국표준과학연구원 전기.자기그룹) ;
  • 김한준 (한국표준과학연구원 전기.자기그룹) ;
  • 임국형 (충남대학교 물리학과)
  • 발행 : 2002.07.10
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초록

Establishment of the Quantum Hall Resistance(QHR) Standard as national resistance standard using a room temperature DCC resistance bridge is described. A simple method are used to obtain the current dependence and error of 10: 1 ratio of the bridge instead of the method using a cryogenic resistance bridge. Measurement uncertainty of the system is estimated as $0.14{\times}10^{-6}$ and it is confirmed that the QHR standard is agreed well with the QHR of other NMIs using the cryogenic resistance bridge within the uncertainty, More improvement about performance of the QHR device and 10: 1 ratio accuracy is still under progress.

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