Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1830151 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2007 | 5 Pages |
Abstract
Magnetic objects can cause local variations in the Earth's magnetic field that can be measured with a magnetometer. Here we used tri-axial magnetometer measurements and an analysis method employing wavelet techniques to determine the “signature” or “fingerprint” of different iron objects. Clear distinctions among the iron samples were observed. The time-dependent changes in the frequency powers were extracted by use of the Morlet wavelet corresponding to frequency bands from 0.1 to 100 Hz.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
José Chilo, Abbas Jabor, Ludwik Lizska, Åge J. Eide, Thomas Lindblad,