Piezoelectric composite material structure with high receiving sensitivity and preparation process thereof

The invention discloses a high-receiving-sensitivity piezoelectric composite material structure and a preparation process thereof, and relates to the technical field of piezoelectric materials and transducers, the high-receiving-sensitivity piezoelectric composite material structure comprises a piezoelectric column array composed of a plurality of piezoelectric columns in array distribution, the piezoelectric column array is filled with a polymer, the plurality of piezoelectric columns are sequentially connected in series, and the piezoelectric column array is provided with an output electrode. The preparation process comprises the following specific steps: S1, preparing a piezoelectric column array with a substrate; and S2, filling a polymer and connecting piezoelectric columns in series. By adopting the high-receiving-sensitivity piezoelectric composite material structure and the preparation process thereof, the output voltage of the piezoelectric material structure after being pressed can be improved, so t