2D metal profile detector using a polymeric fiber optic sensor

Wei-Shu Hua; Joshua R. Hooks; Nicholas A. Erwin; Wen-Jong Wu; Wei-Chih Wang

doi:10.1117/12.915402

20 April 2012 2D metal profile detector using a polymeric fiber optic sensor

Wei-Shu Hua, Joshua R. Hooks, Nicholas A. Erwin, Wen-Jong Wu, Wei-Chih Wang

Proceedings Volume 8348, Health Monitoring of Structural and Biological Systems 2012; 83482K (2012) https://doi.org/10.1117/12.915402
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

As sensors become integrated in more applications, interest in magnetostrictive sensor technology has blossomed. Magnetostrictive materials have many advantages and useful applications in daily life, such as high efficient coupling between elastic and polymer material, large displacement, magnetic field sensors, micro actuator and motion motor, etc. The purpose of this paper is to develop a metal sensor which is capable of detecting different geometries and shapes of metal objects. The main configuration is using a Mach-Zehnder fiber-optic interferometer coated with magnetostrictive material. The metal detector system is a novel design of metal detector, easy to fabricate and capable of high sensitivity. In our design, metal detection is made possible by disrupting the magnetic flux density that encompasses the magnetostriction sensor. In this paper, experimental setups are described and metal sensing results are presented. The results of detecting complex metal's geometry and metal's mapping results are discussed.

Citation Download Citation

Wei-Shu Hua, Joshua R. Hooks, Nicholas A. Erwin, Wen-Jong Wu, and Wei-Chih Wang "2D metal profile detector using a polymeric fiber optic sensor", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 83482K (20 April 2012); https://doi.org/10.1117/12.915402

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