Vibration Characteristics of Piezoelectric Ceramic Elements with Large Anisotropy and Its Application in Ultrasonic Probe

: With the development of ultrasonic machining technology, meeting the needs of modern industrial production, improving product quality and efficiency and reducing cost have become one of the urgent problems to be solved. Using piezoelectric ceramics to study the vibration characteristics of materials has become the most important and effective means. Piezoelectric ceramics is a new type of composite material. It has high power density, low loss, dielectric constant and good mechanical properties. It can obtain good machining effect in ultrasonic machining. Therefore, in this paper, the application of piezoelectric ceramic materials in ultrasonic probe is studied according to the vibration characteristics of piezoelectric ceramic materials. Firstly, this paper introduces the research status of piezoelectric ceramic materials, summarizes the characteristics of different piezoelectric ceramic materials, analyzes and summarizes their characteristics under different parameters, and then compares various parameters. Finally, the experimental results are as follows: PMN-PT raw materials have very good properties and have been commercialized in recent years. If it can be used in this field, it will have superior properties that other raw materials can't compare. Under the same structure and voltage, the maximum output displacement of piezoelectric laminate is larger than pzt5a, which also verifies that pzt4 is a transmitting piezoelectric ceramic and pzt5a is a receiving piezoelectric ceramic. When the stress is applied at the centroid of the fractal piezoelectric ceramic vibrator, the strain degree of the whole structure will increase with the increase of the distance from the centroid. According to the forward piezoelectric effect of piezoelectric materials, the greater the degree of deformation, the greater the voltage generated on the surface of piezoelectric materials