Equivalent circuit analysis with experimental verification for barrel-stave flextensional transducers and arrays

The equivalent circuit model parameters of the barrel-stave flextensional transducer and array are calculated using the circuit principle together with the finite element, boundary element method and the measured results. The electro-acoustic characteristics of the transducers and arrays are analyzed by the obtained equivalent circuit model. The resonant frequencies and admittance curves of the transducers and arrays are calculated and verified by the experimental results in the anechoic water tank. The equivalent circuit model can be used to direct the design of the barrel-stave flextensional transducers and arrays.