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Magneto-Electric Mapping of 3D Electrical Conductivity Distributions – System Design and Resolution AnalysisNormal access

Authors: A. Verweerd, A. Tillmann, E. Zimmermann, A. Kemna and H. Vereecken
Event name: Near Surface 2004 - 10th EAGE European Meeting of Environmental and Engineering Geophysics
Session: Electrical and Electromagnetic Methods 3
Publication date: 06 September 2004
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.04Mb )
Price: € 20

Summary:
A038 MAGNETO-ELECTRIC MAPPING OF 3D ELECTRICAL CONDUCTIVITY DISTRIBUTIONS – SYSTEM DESIGN AND RESOLUTION ANALYSIS Abstract 1 In order to map the electrical conductivity distribution in cylindrical soil columns a combined measurement of the electric potential and the three magnetic field components due to a low frequency current injection is proposed. The magnetic field is measured by means of a vertical moving scanning torus with 24 sensor modules capable of measuring in a range of 200 nT with a resolution of 50 pT without the use of extensive magnetic shielding. Numerical simulations prove the additional value of the magnetic dataset when


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