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Two theoretical models of infrasound piezoelectric hydrophone (IPH) are proposed to meet the requirements of high sensitivity and low frequency hydrophone. The IPH has a laminated structure by using piezoelectric plates with polarization along thickness. Two connection forms of piezoelectric plates, in series and in parallel, are taken into consideration. The effect of structural parameters on the...
An infrasound piezoelectric hydrophone model is proposed with the structure of radially polarized cylindrical tube. The theoretical result is validated by comparison with finite element analysis. The effect of structure parameter on the resonance frequency and the sensitivity is studied theoretically. The hydrophone has some good characteristics, such as high receiver sensitivity, simple structure,...
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