Circular piezoelectric ceramic sheet is a special type of electronic ceramic material that has a piezoelectric effect, that is, it can convert mechanical energy into electrical energy, or convert electrical energy into mechanical energy. This material has a wide range of applications in many fields, such as ultrasonic sensors, electronic instruments, filters, igniters, etc.
The manufacturing process of circular piezoelectric ceramic sheets mainly includes steps such as batching, mixing, rolling, sintering, etc. Among them, ingredient is one of the key steps in manufacturing circular piezoelectric ceramic sheets, as it requires determining the composition and proportion of the material, as well as adding what additives. Mixing is the process of mixing various raw materials together to distribute them evenly, which is crucial for the subsequent manufacturing process. Rolling is the process of pressing a mixed material into thin sheets for the next step of sintering. Sintering is the process of firing rolled thin sheets at high temperatures to make them dense ceramic materials.
The performance of circular piezoelectric ceramic sheets mainly includes piezoelectric coefficient, dielectric constant, mechanical quality factor, etc. The piezoelectric coefficient is an important parameter for measuring the strength of the piezoelectric effect of piezoelectric ceramic materials, and its magnitude depends on the composition and structure of the material. The dielectric constant is a parameter that measures the dielectric properties of a material, and its magnitude also depends on the composition and structure of the material. The mechanical quality factor is a parameter that measures the mechanical properties of a material, and its magnitude depends on the manufacturing process and structure of the material.
The application of circular piezoelectric ceramic sheets is very extensive, such as in ultrasonic sensors, which can be used to detect the position and velocity of objects; In electronic instruments, it can be used to produce sound; In filters, it can be used to remove interference signals; In the igniter, it can be used to generate sparks. In addition, circular piezoelectric ceramic sheets can also be used to manufacture other electronic products, such as electronic doorbells, electronic watches, etc.
In summary, circular piezoelectric ceramic sheets are a very important electronic material with broad application prospects. With the continuous development of science and technology, its application fields will also continue to expand, bringing more convenience and progress to humanity.
Piezoelectric effect refers to the ability of certain materials to produce electric polarization under applied mechanical stress. This electric polarization manifests as a measurable potential difference across the material. One of the unique characteristics of the piezoelectric effect is the reversibility: electric polarization under applied stress, and the generation of stress under an electric field. This self-driven piezoelectric disc combines both effects. A piece of electronically isolated piezoelectric ceramic is assembled on the top of the metal plate to work as the feedback electrode (see picture above).
Upon the activation of the main piezoelectric element (large ceramic section), the metal diaphragm contracts and expands alternately, resulting in a voltage generated across the isolated piezoelectric ceramic. One main advantage of the self-driven piezoelectric disc is that the feedback signal can be used to create a closed-loop control circuit. A typical oscillation circuit is shown above.
