Open AccessEquivalent circuit for the characterization of the resonance mode in piezoelectric systems
Author(s) -
Yilian FernándezAfonso,
O. García-Zaldivar,
F. Calderón-Piñar
Publication year - 2015
Publication title -
journal of advanced dielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 13
eISSN - 2010-135X
pISSN - 2010-1368
DOI - 10.1142/s2010135x15500320
Subject(s) - equivalent circuit , inductance , resistor , capacitance , electrical impedance , resonance (particle physics) , rlc circuit , physics , series (stratigraphy) , electronic circuit , piezoelectricity , equivalent series inductance , materials science , capacitor , acoustics , voltage , quantum mechanics , electrode , paleontology , biology
The impedance properties in polarized piezoelectric can be described by electric equivalent circuits. The classic circuit used in the literature to describe real systems is formed by one resistor (R), one inductance (L) and one capacitance C connected in series and one capacity ([Formula: see text]) connected in parallel with the formers. Nevertheless, the equation that describe the resonance and anti-resonance frequencies depends on a complex manner of R, L, C and [Formula: see text]. In this work is proposed a simpler model formed by one inductance (L) and one capacity (C) in series; one capacity ([Formula: see text]) in parallel; one resistor ([Formula: see text]) in parallel and one resistor ([Formula: see text]) in series with other components. Unlike the traditional circuit, the equivalent circuit elements in the proposed model can be simply determined by knowing the experimental values of the resonance frequency [Formula: see text], anti-resonance frequency [Formula: see text], impedance module at resonance frequency [Formula: see text], impedance module at anti-resonance frequency [Formula: see text] and low frequency capacitance [Formula: see text], without fitting the impedance experimental data to the obtained equation.