Fundamentals of electromagnetic-acoustic thickness measurements with attachable probes: 1. Direct electromagnetic-acoustic transformation in a tangential polarizing field
Source abstract
Abstract
Formulas describing the projections of elastic displacements in longitudinal and shear waves, which are generated via electrodynamic and magnetic mechanisms, are derived at arbitrary values of macroscopic parameters of a solid. It is shown that, in ferromagnets, longitudinal waves can be compensated owing to antiphase properties of the electrodynamic and magnetic mechanisms; as a result, shear vibrations become most significant. It is suggested and substantiated that, in a tangential polarizing field, the operation of thickness gages may be associated with the magnetostriction mechanism of the electromagnetic-acoustic transformation.
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Research context
OpenAlex topics: Ultrasonics and Acoustic Wave Propagation · Non-Destructive Testing Techniques · Magnetic Properties and Applications
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References (19)
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