On the electromagnetic detection of the thickness of a coal or lignite seam with slate backing

J. N. Sahalos, G. Kyriacou

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The use of two small current loops for probing the thickness of a two-layer earth structure is discussed. The thickness and the conductivity contrast can be found by zeroing the secondary magnetic field on the axis of the receiving loop. The inversion from the measured data to the layer thickness proves that our procedure is simple. The whole method can be incorporated into an automated mining machine for sensing a coal or lignite seam with a slate backing.

Original languageEnglish
Pages (from-to)83-101
Number of pages19
JournalJournal of the Franklin Institute
Volume320
Issue number2
DOIs
Publication statusPublished - 1985

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