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Title: Magnetic particle detection in unshielded environment using orthogonal fluxgate gradiometer

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 μm.
Authors:
;  [1]
  1. Applied Science for Electronics and Materials, Kyushu University, Kasuga (Japan)
Publication Date:
OSTI Identifier:
22410004
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPARATIVE EVALUATIONS; DETECTION; LITHIUM IONS; MAGNETIC FLUX; MAGNETIC MATERIALS; MAGNETISM; PARTICLES; SENSORS; SQUID DEVICES; STEELS