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Proceedings Article

Fiberoptic metal detector capable of profile detection

[+] Author Affiliations
Wei-Shu Hua, Wen-Jong Wu

National Taiwan Univ. (Taiwan)

Joshua R. Hooks, Nicholas A. Erwin, Wei-Chih Wang

Univ. of Washington (USA)

Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 798429 (March 31, 2011); doi:10.1117/12.880661
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From Conference Volume 7984

  • Health Monitoring of Structural and Biological Systems 2011
  • Tribikram Kundu
  • San Diego, California, USA | March 06, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Wei-Shu Hua ; Joshua R. Hooks ; Nicholas A. Erwin ; Wen-Jong Wu and Wei-Chih Wang
"Fiberoptic metal detector capable of profile detection", Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 798429 (March 31, 2011); doi:10.1117/12.880661; http://dx.doi.org/10.1117/12.880661


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