대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

디지털 신호처리기를 이용한 고분해능 온도측정 시스템 설계

A Design of High Resolution Temperature Measurement System Using Digital Signal Processor

  • 김태훈 (서울시립대학교 대학원 전자전기컴퓨터공학부) ;
  • 임주현 (서울시립대학교 대학원 전자전기컴퓨터공학부) ;
  • 김덕영 (부천대 전자과) ;
  • 고한우 (표준과학연구원) ;
  • 김성환 (서울시립대학교 전자전기컴퓨터공학부)
  • 발행 : 2002.07.01
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초록

This paper presents a linear temperature/voltage relation over a temperature range(0~100$^{\circ}C$) with high-resolution, reasonably god response linearity, reliability, and overall improved performance. A notable feature of the proposed method is that the whole temperature span is divided by 16 subbands thus the variation span of measured voltage is narrowed. Therefore noise characteristic has been improved. The output voltage is amplified after the uniformed DC voltage component is eliminated by offset. We proposed circuit using median value and mean value of digital signal in order to reduce the noise effect. The proposed circuit offers linear temperature/voltage conversion over a wide dynamic range using DSP(TMS320C31) and steinhart equation.

키워드

참고문헌

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