Measurement system for determining the magnetic polarizability tensor of small metal targets

This paper presents an apparatus to measure the spectroscopic magnetic response of small metallic objects and deduce the magnetic polarizability tensor. The measured transimpedances of a .222 Remington rifle cartridge and titanium cube are compared to simulated results and are found to match well pr...

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Bibliographic Details
Published in2015 IEEE Sensors Applications Symposium (SAS) pp. 1 - 5
Main Authors Abdel Rehim, Omar A., Davidson, John L, Marsh, Liam A, O'Toole, Michael D, Armitage, David W, Peyton, Anthony J
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2015
Subjects
Detectors
Eigenvalues and eigenfunctions
electromagentic induction
ERW detection
Magnetic field measurement
magnetic polarizability tensor
Tensile stress
Titanium
Voltage measurement
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DOI10.1109/SAS.2015.7133568

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Summary:This paper presents an apparatus to measure the spectroscopic magnetic response of small metallic objects and deduce the magnetic polarizability tensor. The measured transimpedances of a .222 Remington rifle cartridge and titanium cube are compared to simulated results and are found to match well providing verification of the method. The eigenvalues of the two objects are calculated and discussed highlighting the potential discriminatory aspect. The results support the proposed use of the eigenvalue spectra to provide subsurface classification and discrimination between landmines and clutter.
DOI:10.1109/SAS.2015.7133568