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  • Title: Axial vibration characteristics of a cylindrical, radially polarized piezoelectric transducer with different electrode patterns.
    Author: Sun D, Wang S, Hata S, Shimokohbe A.
    Journal: Ultrasonics; 2010 Mar; 50(3):403-10. PubMed ID: 19818980.
    Abstract:
    A circular cylindrical piezoelectric transducer with radial polarization is proposed. The axial vibration characteristics of the transducer are studied by three different methods: analytical calculation, FEM simulation and experiment. The symmetric and asymmetric excitation conditions are discussed in the Haskins and Walsh model. For the resonance frequencies of the transducer, the results from the above three methods coincide well with each other. For the vibration amplitude, there are some deviations between the FEM simulation and measurement results; some possible reasons for this are discussed. The influence of the electrode patterns on the excitation modes are also investigated in detail. Based on the study described in this paper, the research methodology for a cylindrical piezoelectric transducer is clarified.
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