Localizing a magnetic dipole using a gradiometer

Localizing a magnetic dipole using a gradiometer: Lokaliseren van een magnetische dipool met behulpvan een gradiometer

Chen, Qianqian (TU Delft Electrical Engineering, Mathematics and Computer Science)

Vijn, A.R.P.J. (mentor)
Lepelaars, Eugene (mentor)
Heemink, A.W. (graduation committee)
van Gijzen, M.B. (graduation committee)

Delft University of Technology

Applied Mathematics

2020-06-25

Magnetic anomaly detection (MAD) is a widely used method for detecting ferromagnetic targets, particularly hidden objects. A common way to localize a magnetic target is to look at the maximum of the magnitude of the magneticeld gradient. In this thesis, we consider a threeaxis total eld gradiometer which measures the gradient of the magnitude of the magnetic eld along three orthogonal axes. Based on the measured data from the three-axis total eld gradiometer, we decompose the inversion problem into two linear systems. By solving those two systems, we get an approximation for the location and moment that we are looking for. For the considered gradiometer, we can improve the parameters if the detailed geometry of the gradiometer is taken into account.

MAD
Localization of magnetic dipole
gradiometer

http://resolver.tudelft.nl/uuid:2fec71d2-1604-4f18-9b0c-527a7511ee67

Student theses

bachelor thesis

© 2020 Qianqian Chen