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Titel |
The results of experimental studies of VLF-ULF electromagnetic emission by rock samples due to mechanical action |
VerfasserIn |
A. A. Panfilov |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 6 ; Nr. 14, no. 6 (2014-06-02), S.1383-1389 |
Datensatznummer |
250118488
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Publikation (Nr.) |
copernicus.org/nhess-14-1383-2014.pdf |
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Zusammenfassung |
The paper presents the results
of laboratory experiments on electromagnetic emissions excitation (the
electric component of electromagnetic fields) by rock samples due to
different forms of mechanical stress applications. It was shown that samples
generate electric impulses with different spectra when the impact action,
gradual loading or dynamic friction is applied. It was ascertained that level
and spectral compositions of signals, generated by rock samples, change with
an increasing number of hits. It was found that strong electromagnetic
signals, generated while rock samples were fracturing, were accompanied by
repetitive weak but perceptible variations in the electric field intensity in
short frequency ranges. |
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