전자공학회논문지 (Journal of the Institute of Electronics and Information Engineers)

  • 제51권8호
  • /
  • Pages.178-184
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  • 2014
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  • 2287-5026(pISSN)
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  • 2288-159X(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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자기 변형 기술을 이용한 액체 밀도 측정의 보정 기술

Calibration Technique of Liquid Density Measurement using Magnetostriction Technology

  • 서무교 (대구과학대학교 반도체전자과) ;
  • 홍영호 (경운대학교 항공전자공학과) ;
  • 최인섭 (안동대학교 컴퓨터공학과)
  • Seo, Moogyo (Department of Semiconductor Electronic Engineering, Taegu Science University) ;
  • Hong, Youngho (Dept. of Avionic Electronics Engineering, Kyungwoon University) ;
  • Choi, Inseoup (Sandeul Information Communication Co.,Ltd.)
  • 투고 : 2013.12.18
  • 심사 : 2014.08.11
  • 발행 : 2014.08.25
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초록

자기 변형 기술의 거리 측정을 응용하여, 중력과 액체 밀도에 대응하는 부력의 평형 위치를 측정하는 액체 밀도 센서를 개발하였다. 이 시스템의 정밀도 향상을 위해, 액체 밀도변화에 따른 밀도 센서의 이동거리 사이의 관계식을 유도하고, 이를 이용하여, 액체 밀도 센서의 2 점 보정 방법을 마련하였다. 제작된 액체 밀도 센서 시스템과 유도된 관계식을 사용하여 액체의 밀도들을 측정하였다. 측정된 결과들을 U-tube 진동주기 측정방식의 고 정밀 밀도 측정기(Oscillating U-tube density meter: 분해능 0.000001 g/cc)의 측정결과와 비교하였다. 그 결과 두 액체 밀도 측정 시스템간의 측정 편차가 0.001 g/cc 미만임을 확인하였다.

In this study, we develop liquid density sensor by measuring of balanced position between gravity and bouyancy, corresponding to liquid density, using distance measuring by magnetostriction technology. For improvement of accuracy of liquid density sensor system. And we derive the related equation between liquid density and moving distance of density sensor, and make the calibration method for liquid density sensor by magnetostriction technology. Using fabricated liquid density sensing system and derived equation, have measured the density of several liquids. And compare it to measuring results using Oscillating U-tube type high accuracy density meter, having 0.000001 g/cc resolution. The deviation of results between two density measuring systems was less than 0.001 g/cc.

키워드

참고문헌

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