The applicability of the constant capacitance model, the diffuse layer model and the triple lay er model to the natural sediments were compared.

As electrolytic capacitors of high voltage and capacitance for energy storage and high current discharge, lower leakage current, lower ESR and more stable and constant capacitance are required.

The result shows, under different vibration mode, equivalent parallel capacitance and resistance are not constant value. There is negative damp effect in transducer system at the operating mode.