대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2001년도 하계학술대회 논문집 B
- /
- Pages.819-821
- /
- 2001
Hall 센서 위치에 따른 MFL 특성 고찰
Characteristics Magnetic Flux Leakage According to the Position of Hall Sensor
- Kim, Sean (Soongsil Univ.) ;
- Lee, Hyang-Beom (Soongsil Univ.)
- 발행 : 2001.07.18
초록
This paper describes a characteristics of MFL according to the position of Hall sensor Magnetic Flux Leakage(MFL) Method is used to detect surface defect in ferromagnetic plate. A plate has a surface defect and magnetizing equipment are producted to perform Non-Destructive Testing(NDT) using MFL. The SM 45C carbon steel plate is adopted to this experiment. there is a artifical defect with a twice of thickness and a half of depth of plate. Magnetizing equipment is composed of yoke made by layer-built of silicon sheet steel, NdFeB magnetic and iron brushes. Detecting defect is performed by MFL NDT using Hall sensor. It is shown that magnetic flux detected by Hall sensor is affected according to the position of Hall sensor through MFL experiment and numerical analysis.
키워드