Open AccessStudying electromagnetic signal of rock effected by acoustic impact under uniaxial compression
Author(s) -
Lyudmila V. Yavorovich,
Anatoly Bespal’ko,
Evgeny Pomishin,
P.I. Fedotov
Publication year - 2016
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.4964567
Subject(s) - impulse (physics) , quartz , compression (physics) , materials science , geology , voltage , stress (linguistics) , magnetic field , electromagnetic field , signal (programming language) , acoustic emission , acoustics , mineralogy , electrical engineering , engineering , composite material , computer science , physics , linguistics , philosophy , quantum mechanics , programming language
Physical modeling in vitro is a way to carry out basic laws of mechanoelectric transformations in a rock massive. In this paper we examined how rock mechanical properties influenced on parameters of electromagnetic signals (EMS) excited by the determined acoustic impulse under uniaxial compression. It has been determined that sulphides and quartz in rock samples from the Tashtagolsky iron-ore deposit (Western Siberia, Russia) promote transformation of a mechanical energy to an electromagnetic field energy which is expressed in an augmentation of an EMS voltage. An EMS voltage reduction at the change of the stress-strained state of the sample in the course of an uniaxial compression is observed with quantity augmentation of containing of high-conducting magnetite in rocks. The obtained results are important for a physical substantiation of the method of monitoring of the stress-strained state of rock massive by mechanoelectric transformation characteristics
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