International Comparison of high resistance and Mutual Recognition between National Metrology Institutes

전기저항의 국제비교 및 계측기술에 관한 국제적 상호인정 추세

  • Yu, Kwang-Min (Korea Research Institute of Standards and Science(KRISS)) ;
  • Ryu, Je-Cheon (Korea Research Institute of Standards and Science(KRISS)) ;
  • Kang, Jeon-Hong (Korea Research Institute of Standards and Science(KRISS)) ;
  • Kim, Han-Jun (Korea Research Institute of Standards and Science(KRISS))
  • 유광민 (한국표준과학연구원 전자기표준부) ;
  • 류제천 (한국표준과학연구원 전자기표준부) ;
  • 강전홍 (한국표준과학연구원 전자기표준부) ;
  • 김한준 (한국표준과학연구원 전자기표준부)
  • Published : 1999.07.19

Abstract

Mutual Recognition Agreement(MRA) between national metrology institutes is started on October 1999 and International Key Comparison is essentially to be used as technical basis for the agreement. High resistance is one of the Key Comparison and high resistance measurement system is established in KRISS for the purpose of the Key Comparison. Total combined uncertainty of the system is about 4ppm in $10M{\Omega}$ and 8ppm in $1G{\Omega}$. With the system, the difference of comparison results for $10M{\Omega}$ and $1G{\Omega}$ among KRISS, VNIIM in Russia and NIM in China is agreed about 6ppm within total combined uncertainty of three institutes.

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