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Obtaining “images” from iron objects using a 3-axis fluxgate magnetometer
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för elektronik.
Royal Institute of Technology, Department of Physics, Stockholm, Sweden.
Swedish Institute of Space Physics in Umeå, Sweden.
Ostfold University College, Halden, Norway.
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2007 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 580, no 2, p. 1105-1109Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2007. Vol. 580, no 2, p. 1105-1109
Keyword [en]
eature extraction; Fingerprints; Magnetometer; Wavelets
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-2636DOI: 10.1016/j.nima.2007.06.070ISI: 000250128000058Scopus ID: 2-s2.0-34548476793OAI: oai:DiVA.org:hig-2636DiVA, id: diva2:119298
Available from: 2007-10-03 Created: 2007-10-03 Last updated: 2018-03-13Bibliographically approved

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Chilo, José

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