대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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- Pages.1008-1010
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- 2005
원전SG세관의 결함크기에 따른 MRPC 프로브의 신호 해석
Analysis of MRPC Probe Signal According to Defect Size Variation for S/G Tube in Nuclear Power Plant
- Kim, Ji-Ho (Dept. of Electrical Engineering, Soongsil University) ;
- Song, Ho-Jun (Dept. of Electrical Engineering, Soongsil University) ;
- Lim, Keon-Gyu (Dept. of Electrical Engineering, Soongsil University) ;
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Lee, Hyang-beom
(Dept. of Electrical Engineering, Soongsil University)
- 발행 : 2005.07.18
초록
In the examination of steam generator(SG) tube in nuclear power plant, eddy current testing probes play an important role in detecting the defects. Bobbin probe and MRPC probe is usually used for the inspection of SG tube. Bobbin probe is good at high speed inspection, but ability of detection of circumferential defect is very weak. On the contrary MRPC probe, which moves for inspection in the direction of axial and circumferential simultaneously, has very slow inspection speed, but it has excellent detection capability for small cracks, which is hardly detected by bobbin probe. In this paper, for the accurate analysis of experimental ECT signals, construction of MRPC probe signals database according to the variation of defect size is the main purpose. Using 3-D finite element method, ECT signals are analyzed, and signals analysis add according to frequency ingredient. The results, which are analysis and characteristics ion of electromagnetism simulation signals, is databased.
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