Calibration Technique of Liquid Density Measurement using Magnetostriction Technology

자기 변형 기술을 이용한 액체 밀도 측정의 보정 기술

  • 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.)
  • 서무교 (대구과학대학교 반도체전자과) ;
  • 홍영호 (경운대학교 항공전자공학과) ;
  • 최인섭 (안동대학교 컴퓨터공학과)
  • Received : 2013.12.18
  • Accepted : 2014.08.11
  • Published : 2014.08.25


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.


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