Abstract

This paper presents the inductance–capacitance (LC) resonance effect in the magnetoelectric (ME) composites characterization system. The measured magnetoelectric voltage coefficient is significantly affected by the LC resonance at the electromechanical resonant frequency, but not at 1 kHz, typically reported in the literature. Decreasing the measuring circuit inductance and/or capacitance helps to reduce the LC resonance effect. While it is impossible to completely eliminate the coil inductance and capacitance, they should be accounted for by proper circuit balancing. One can accurately calculate the sample intrinsic ME voltage coefficient knowing L and C of the measuring circuit. This study is helpful for designing and building the ME characterization systems.

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