Development of the Technique of Nondestructive Testing of Heterogeneous Dielectric Materials Based on Utilization of the Mechanoelectric Transformation Phenomenon

摘要

Defects of different types and sizes in a material are shown to result in variations in the spectral characteristics of electric responses to pulsed mechanical excitation of heterogeneous mate-rials. General regularities reside in an increase in the size and concentration of defects that yields a decrease in the magnitude and quality factor of the principal spectral maximum and variations in the spectral composition of the electric response.