Study on Thickness Mode of Piezoelectric Ceramic Disk With Discrete Series Electrode Structure

摘要

Based on discretized electrode, a novel piezoelectric ceramic disk with a new form of electrode coating is proposed, where the created multiple electrical ports are linked into a series configuration. Combined with the Mason equivalent circuit, the electrical model of the discrete series electrode structure is established, and the electrical output characteristics of the model based on the thickness mode are analyzed. The simulation of the finite element method (FEM) and numerical analysis results show that the novel structure presented can apparently improve the output voltage of the acoustic-electrical conversion transducer which showing a promising potential that the output voltage of the receiving system can be adjusted and controlled.