A moving magnetic flux type sensor with shading coils for eddy current testing

被引:0
作者
Tsuchida, Y [1 ]
Okamoto, T [1 ]
Enokizono, M [1 ]
机构
[1] Oita Univ, Fac Engn, Dept Elect & Elect Engn, Oita 87011, Japan
来源
JOURNAL DE PHYSIQUE IV | 1998年 / 8卷 / P2期
关键词
D O I
10.1051/jp4:19982182
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This paper presents a moving magnetic flux type sensor with shading coils for eddy current resting. The eddy current testing is useful for detecting cracks and defects on the surface of the conductive materials. However, it is much difficult to detect them on the reverse side surface otherwise the cracks and defects occur on this surface. Therefore we have developed a new sensor for detecting cracks and defects on the reverse side surface. This sensor consists of shading coils which can yield the moving magnetic field, pick-up coils and an exciting coil. In this paper, the results measured by this new sensor are shown and the availability of our new sensors is discussed.
引用
收藏
页码:789 / 792
页数:4
相关论文
共 3 条
[1]  
ENOKIZNO M, 1997, J MJPN, V21, P773
[2]  
HAKUTA K, 1995, UPGRADE MICRO EDDY C, P157
[3]  
NAGATA S, 1995, MAGNETIC SENSOR USIN, P141