The frequency dependence of normal electromagnetic-acoustic transformation via a magnetostriction mechanism of the generation of shear waves
Source abstract
Abstract
An acoustic field that is generated by attachable oscillators in a magnetostrictive well-conducting medium is considered. The generation of shear waves was found to be most efficient. The basic results of calculations are illustrated by the patterns of an acoustic field that are produced by a two-phase oscillator equipped with wide current elements. It was shown that the directional characteristic of the two-phase oscillator is formed based on the radiation of a single-phase oscillator. The radiation structure of the oscillator is due to a high-frequency magnetization gradient along the interface. As a result of the addition of radiations produced by antiphased oscillators, an interference maximum is formed at the center of their symmetry; the maximum shows promise. The transformation ranges of the radiation near-field and transition zones were estimated depending on the frequency.
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Research context
OpenAlex topics: Magnetic and Electromagnetic Effects · Electromagnetic Effects on Materials · Geotechnical and Geomechanical Engineering
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References (7)
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