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Proceedings Paper

Fiberoptic metal detector capable of profile detection
Author(s): Wei-Shu Hua; Joshua R. Hooks; Nicholas A. Erwin; Wen-Jong Wu; Wei-Chih Wang
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Paper Abstract

The purpose of this paper is to develop a novel ferromagnetic polymeric metal detector system by using a fiber-optic Mach-Zehnder interferometer with a newly developed ferromagnetic polymer as the magnetostrictive sensing device. This ferromagnetic polymeric metal detector system is simple to fabricate, small in size, and resistant to RF interference (which is common in typical electromagnetic type metal detectors). Metal detection is made possible by disrupting the magnetic flux density present on the magnetostrictive sensor. This paper discusses the magnetic properties of the ferromagnetic polymers. In addition, the preliminary results of successful sensing of different geometrical metal shapes will be discussed.

Paper Details

Date Published: 31 March 2011
PDF: 7 pages
Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 798429 (31 March 2011); doi: 10.1117/12.880661
Show Author Affiliations
Wei-Shu Hua, National Taiwan Univ. (Taiwan)
Joshua R. Hooks, Univ. of Washington (United States)
Nicholas A. Erwin, Univ. of Washington (United States)
Wen-Jong Wu, National Taiwan Univ. (Taiwan)
Wei-Chih Wang, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 7984:
Health Monitoring of Structural and Biological Systems 2011
Tribikram Kundu, Editor(s)

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