Piezoelectric ceramics is an information functional ceramic material that can convert mechanical energy and electrical energy to each other-piezoelectric effect. In addition to piezoelectricity, piezoelectric ceramics also have dielectric and elastic properties. It has been widely used in medical imaging and acoustic sensors. , Sound transducer, ultrasonic motor, etc. Piezoelectric ceramics are made by using their materials to cause the relative displacement of the positive and negative charge centers inside the material under the action of mechanical stress to be polarized, which leads to the occurrence of bound charges with opposite signs on both ends of the material, that is, the piezoelectric effect. It has sensitive characteristics. Ceramics are mainly used to manufacture ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic discriminators, high-voltage generators, infrared detectors, surface acoustic wave devices, electro-optical devices, Ignite and detonate and piezoelectric gyro, etc., in addition to being used in high-tech fields, it is more to serve people in daily life and work hard for people to create a better life.