Multi-point resonance piezoelectric ceramic wafer and multi-point resonance transducer driven by piezoelectricity

The utility model discloses a multi-point resonance piezoelectric ceramic wafer and a multi-point resonance transducer driven by piezoelectricity, the multi-point resonance piezoelectric ceramic wafer comprises a piezoelectric ceramic piece, the front surface of the piezoelectric ceramic piece is provided with a central electrode area, a central electrode connecting line, an electrode closed curve area and an area electrode connecting line; the regional electrode connecting line is a line in any shape; the electrode closed curve regions are connected into a whole through region electrode connecting lines; the whole back face of the piezoelectric ceramic piece is coated with a back face electrode area. According to the utility model, the plurality of electrode areas are arranged on the piezoelectric ceramic piece and are connected into a whole through the electrode connecting wires, so that the effect that one wafer can generate a plurality of vibration centers is realized; and vibration of each electrode area