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Development of a polymer based fiberoptic magnetostrictive metal detector system
Wei Shu Hua1, Joshua Rosenberg Hooks2, Wen Jong Wu3
1National Taiwan University wshua@mems.iam.ntu.edu.tw.
Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)
|October 2, 2015
Summary
This study introduces a novel fiber-optic metal detector utilizing a magnetostriction sensor made from a unique ferromagnetic polymer. This innovative sensor offers a simple, compact, and RF-interference-resistant alternative for metal detection applications.
Area of Science:
- Optoelectronics
- Materials Science
- Sensor Technology
Background:
- Traditional electromagnetic metal detectors are susceptible to radio frequency (RF) interference.
- Magnetostrictive sensors offer an alternative detection principle based on magnetic field changes.
Purpose of the Study:
- To present a new fiber-optic metal detector.
- To introduce a novel ferromagnetic polymer as a magnetostrictive sensing material.
- To evaluate the sensor's performance and characteristics.
Main Methods:
- Fabrication of a fiber-optic Mach-Zehnder interferometer sensor.
- Utilizing a newly developed ferromagnetic polymer as the magnetostrictive sensing material.
- Metal detection based on the disruption of magnetic flux density.
Main Results:
- The developed sensor is simple to fabricate and small in size.
- The sensor demonstrates resistance to RF interference, a common issue in electromagnetic detectors.
- The detection principle relies on changes in magnetic flux density.
Conclusions:
- The polymeric magnetostrictive fiber-optic sensor is a promising technology for metal detection.
- Its unique properties make it suitable for environments with RF interference.
- Further investigation into material characteristics and magnetic properties is warranted.
