Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method

Mingyang Lu; Qian Zhao; Peipei Hu; Wuliang Yin; A J Peyton

Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method

Mingyang Lu, Qian Zhao, Peipei Hu, Wuliang Yin, A J Peyton

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

The magnetic polarization tensor is a frequency-dependent, rotation-invariant and object-specific property of a metallic object. This paper presents an approach to compute the magnetic polarization tensor of a metallic object based on the Boundary Element Method (BEM), which treats the object as a perfect electrical conductor (PEC) and therefore is able to predict the limiting cases where very high frequency and/or high conductivity is assumed. A uniform magnetic field is applied to an object and the scattered field at a certain distance is obtained in the simulations. The magnetic tensor can then be deduced from the scattered field. The simulated results agree well with an analytical solution for spheres and with measured results for a number of cylinders for limiting cases.

Original language	English
Title of host publication	host publication
Pages	1
Number of pages	4
Publication status	Published - 2015
Event	IEEE Sensors Applications Symposium - Zadar, Croatia Duration: 13 Apr 2015 → 15 Apr 2015

Conference

Conference	IEEE Sensors Applications Symposium
City	Zadar, Croatia
Period	13/04/15 → 15/04/15

Keywords

boundary-elements methods
conductors (electric)
electromagnetic wave polarisation
electromagnetic wave scattering
magnetic sensors
metal detectors

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http://dx.doi.org/10.1109/SAS.2015.7133631

Cite this

@inproceedings{cd0ac54a4e6b4be08ecb5ddf9c28fa43,

title = "Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method",

abstract = "The magnetic polarization tensor is a frequency-dependent, rotation-invariant and object-specific property of a metallic object. This paper presents an approach to compute the magnetic polarization tensor of a metallic object based on the Boundary Element Method (BEM), which treats the object as a perfect electrical conductor (PEC) and therefore is able to predict the limiting cases where very high frequency and/or high conductivity is assumed. A uniform magnetic field is applied to an object and the scattered field at a certain distance is obtained in the simulations. The magnetic tensor can then be deduced from the scattered field. The simulated results agree well with an analytical solution for spheres and with measured results for a number of cylinders for limiting cases.",

keywords = "boundary-elements methods, conductors (electric), electromagnetic wave polarisation, electromagnetic wave scattering, magnetic sensors, metal detectors",

author = "Mingyang Lu and Qian Zhao and Peipei Hu and Wuliang Yin and Peyton, {A J}",

note = "asymptotical magnetic polarization tensor prediction;cylindrical samples;boundary element method;frequency dependent property;rotation invariant property;object specific property;metallic object;BEM;perfect electrical conductor;PEC;uniform magnetic field;scattered field;; IEEE Sensors Applications Symposium ; Conference date: 13-04-2015 Through 15-04-2015",

year = "2015",

language = "English",

pages = "1",

booktitle = "host publication",

}

TY - GEN

T1 - Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method

AU - Lu, Mingyang

AU - Zhao, Qian

AU - Hu, Peipei

AU - Yin, Wuliang

AU - Peyton, A J

N1 - asymptotical magnetic polarization tensor prediction;cylindrical samples;boundary element method;frequency dependent property;rotation invariant property;object specific property;metallic object;BEM;perfect electrical conductor;PEC;uniform magnetic field;scattered field;

PY - 2015

Y1 - 2015

N2 - The magnetic polarization tensor is a frequency-dependent, rotation-invariant and object-specific property of a metallic object. This paper presents an approach to compute the magnetic polarization tensor of a metallic object based on the Boundary Element Method (BEM), which treats the object as a perfect electrical conductor (PEC) and therefore is able to predict the limiting cases where very high frequency and/or high conductivity is assumed. A uniform magnetic field is applied to an object and the scattered field at a certain distance is obtained in the simulations. The magnetic tensor can then be deduced from the scattered field. The simulated results agree well with an analytical solution for spheres and with measured results for a number of cylinders for limiting cases.

AB - The magnetic polarization tensor is a frequency-dependent, rotation-invariant and object-specific property of a metallic object. This paper presents an approach to compute the magnetic polarization tensor of a metallic object based on the Boundary Element Method (BEM), which treats the object as a perfect electrical conductor (PEC) and therefore is able to predict the limiting cases where very high frequency and/or high conductivity is assumed. A uniform magnetic field is applied to an object and the scattered field at a certain distance is obtained in the simulations. The magnetic tensor can then be deduced from the scattered field. The simulated results agree well with an analytical solution for spheres and with measured results for a number of cylinders for limiting cases.

KW - boundary-elements methods

KW - conductors (electric)

KW - electromagnetic wave polarisation

KW - electromagnetic wave scattering

KW - magnetic sensors

KW - metal detectors

M3 - Conference contribution

SP - 1

BT - host publication

T2 - IEEE Sensors Applications Symposium

Y2 - 13 April 2015 through 15 April 2015

ER -

Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method

Abstract

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Keywords

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