Development of urea sensor using the ISFET and Platinum reference electrode and by employing the differential amplification

ISFET 및 pt 기준전극과 차동증폭법을 이용한 요소감지소자 개발

  • Kim, Sung-Jin (Dept. of Electronics, Kyungpook National University) ;
  • Kwon, Dae-Hyuk (Dept. of Electronics, Kyungpook National University) ;
  • Lee, Jong-Hyan (Dept. of Electronics, Kyungpook National University) ;
  • Sohn, Byung-Ki (Dept. of Electronics, Kyungpook National University)
  • 김성진 (경북대학교 전자공학과) ;
  • 권대혁 (경북대학교 전자공학과) ;
  • 이종현 (경북대학교 전자공학과) ;
  • 손병기 (경북대학교 전자공학과)
  • Published : 1988.07.01

Abstract

An FET type urea sensing device has been developed using the ISFET and platinum reference electrode and by employing the differential amplification. The performance characteristics of the fabricated sensor show a good linearity in the urea concentration range of $5{\times}10^{-5}$ to $10^{-3}$g/ml and a stable response.

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