Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.07b
- /
- Pages.1000-1002
- /
- 2003
Characteristics Analysis Eddy Current Sensor Using by Numerical Analysis
수치해석을 이용한 와전류센서의 특성해석
- Choi, Duck-Su (Department of Electrical Engineering, Soongsil University) ;
-
Lee, Hyang-Beom
(Department of Electrical Engineering, Soongsil University)
;
- Na, Eun-Jin (Department of Electrical Engineering, Soongsil University)
- Published : 2003.07.21
Abstract
The characteristics of eddy current sensor has been analyzed by using numerical analysis which is performed by modeling eddy current sensor and analytic object into three-dimension axis-symmetry in this paper. The eddy current sensor is modeled as cylindrical shape with variation of inside and outside diameter and frequency range between 1[kHz] and 1[MHa] for numerical analysis. The value of impendence on eddy current sensor depending on frequency variation was calculated through numerical analysis. The characteristics of eddy current sensor can be studied by normalized impendence which is gained from the calculated impendence. Therefore, sensitivity of eddy current sensor depending on frequency, inside and outside diameter can be known by investigating diameter of half circle impendence and its locus.
Keywords