Journal
Scientific and technical journal «Priborostroenie»
UDK53.082.73
Issue:3 (64)
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METHOD FOR EVALUATING THE DYNAMIC RESISTANCE OF PIEZOELECTRIC ELEMENTS
Annotation
An engineering technique for evaluating the dynamic resistance of piezoelectric elements by an indirect method using experimentally obtained impulse transient functions (i.e., the responses of piezoelectric elements to impulse forces of a mechanical load) is presented. Dynamic models of piezo elements are developed and investigated based on equivalent electrical equivalent circuits. Dependence of the impulse transient function duration on the resistance of piezoelectric elements at various load resistances is derived. A formula is proposed for an approximate estimate of the dynamic resistance of piezoelectric elements for operation close to idle modes. Results of the theoretical analysis are confirmed by examples and experimental oscillograms of the impulse transient function obtained at various parameters of the electrical load of the piezoelectric elements.
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