Magnetic particle detection in unshielded environment using orthogonal fluxgate gradiometer

被引:6
作者
Elrefai, Ahmed L. [1 ]
Sasada, Ichiro [1 ]
机构
[1] Kyushu Univ, Appl Sci Elect & Mat, Kasuga, Fukuoka 816, Japan
关键词
CONTAMINANT DETECTION SYSTEM; METALLIC CONTAMINANT; SQUIDS;
D O I
10.1063/1.4913720
中图分类号
O59 [应用物理学];
学科分类号
摘要
A new detection system for magnetic particles, which can operate in an unshielded environment, is developed using a fundamental mode orthogonal fluxgate gradiometer. The proposed detection system offers the advantages of cost, size, and weight reduction as compared to contamination detection systems using superconducting quantum interference device sensor. The detection system can be used to detect metallic contamination in foods or lithium ion battery production lines. The system has been investigated numerically to optimize various design parameters of the system. Experimental setup has been developed to evaluate some of the numerically predicted results. Steel balls were successfully detected down to the diameter of 50 mu m. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:4
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