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전기적 임피던스 단층 촬영 기법을 이용한 이상 유동 가시화

Two Phase Flow Visualization by Employing Electrical Impedance Tomography Technique

김민찬^† 김경언¹ 이헌주² 김신² 이용준² 김세훈³

Min Chan Kim^† Kyung Youn Kim¹ Heon Ju Lee² Sin Kim² Yoon Joon Lee² Saehoon Kim³

제주대학교 화학공학과, 제주 690-756 ¹제주대학교 전자공학과, 제주 690-756 ²제주대학교 에너지공학과, 제주 690-756 ³강릉대학교 세라믹공학과, 강릉 210-702

Department of Chemical Engineering, Cheju National University, Cheju 690-756, Korea ¹Department of Electronic Engineering, Cheju National University, Cheju 690-756, Korea ²Department of Nuclear and Energy Engineering, Cheju National University, Cheju 690-756, Korea ³Department of Ceramic Engineering, Kangnung National University, Kangnung, Kwangwon-do 210-702, Korea

HWAHAK KONGHAK, December 2001, 39(6), 673-677(5), NONE

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Abstract

이상 유동 가시화를 위한 전기적 임피던스 단층 촬영(Electrical Impedance Tomography; ET) 측정 장치와 영상 복원 알고리즘을 개발하였다. EIT 측정 장치는 전류 생성부와 전압 측정부로 구성되고, 영상 복원 알고리즘은 정 문제와 역 문제로 이루어진다. 정 문제를 해석하기 위하여 유한 요소법이 사용되었고, 역 문제를 풀기 위하여 반복적인 regularized Newton-Raphson을 사용하였다. 측정 장치에 의해 측정된 실험결과와 영상 복원 알고리즘을 결합하여, 타당한 단층 촬영 영상을 얻을 수 있었다.

The electrical impedance tomography(EIT) measurement system and image reconstruction algorithm are developed for the visualization of two-phase flow. EIT measurement system is composed of current generation and voltage measurement parts. The image reconstruction algorithm is composed of forward and inverse problems. The finite element method (FEM) is employed in forward problem and the regularized Newton-Raphson iterative method is used in inverse problem. By combining the experimental results measured by our measurement system and image reconstruction algorithm, reasonable tomographic images are obtained.

Keywords

Electrical Impedance Tomography Two Phase Flow Visualization Complete Electrode Model Finite Element Method

References

Webster JG, "Electrical Impedance Tomography," Adam Hilger, Bristol, England (1990)
Newell JC, Gisser DG, Isaacson D, IEEE Trans. Biomed. Eng., 35, 828 (1987)
Li L, Wei J, AIChE J., 45(9), 1855 (1999)
McKee SL, Ph.D. Dissertation, UMIST, Manchester, England (1994)
Abdullah MZ, Ph.D. Dissertation, UMIST, Manchester, England (1993)
Vauhkonen M, Ph.D. Dissertation, Kuopio University, Finland (1997)
Yorkey TJ, Webster JG, Tompkins WJ, IEEE Trans. Biomed. Eng., 34, 843 (1987)
Cheney M, Isaacson D, Newell JC, Simske S, Goble J, Int. J. Imag. Syst. Technol., 2, 66 (1990)