The complex oscillator method for bending vibrations

Purpose of the work: Development of a method for measuring the elastic and piezoelectric properties of piezoelectric materials over the frequency range of several hertz to several kilohertz. Materials and methods: The object of the research is film-polymer piezoelectric materials of the PVDF type. A composite oscillator is used as a method of investigation, which consists of a bimorph cantilever piezoelectric element that performs bending vibrations. Results: Calculated ratios similar to those for a longitudinal complex oscillator have been obtained, allowing the resonant frequency of the main mode of vibration of the studied plate to be calculated from the frequencies of a reference plate and a bimorph as a whole. Conclusion: The results obtained are intended to study the properties of materials in the low-frequency range.

Authors: V. M. Tsaplev, R. S. Konovalov, S. I. Konovalov, A. D. Soloveva

Direction: Physics

Keywords: piezoelectric polymers, bimorph console, complex oscillator, bending vibrations, elastic moduli, piezomoduli

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