Como você pode possuir a cerâmica Piezo com mais barato

All materials are affected by the composition through the structure to affect its performance. In the preparation of all materials, the composition - process - structure - properties are always closely related. The piezoelectricity of the piezoelectric transducer datasheet is also related to its internal microstructure is closely related. With the further understanding of the piezoelectricity of materials and the extensive application of piezoelectricity is used in daily life and production, piezoelectric ceramics have developed into a series of products involving a series of research and development topics. Some anisotropic crystals, under the action of external force to produce deformation, the relative displacement of charged particles, ultrasonic atomizing piezoelectric is resulting in the binding surface charge crystal, this phenomenon is called the piezoelectric effect. Some media in the mechanical pressure, even if this pressure is as small as the sound wave vibration, which will produce compression or elongation and other shape changes, causing the dielectric surface charge, which is the positive piezoelectric effect; On the contrary, the application of excitation electric field, the medium will have mechanical deformation, it called inverse piezoelectric effect; this property of the piezoelectric sensor crystal is called piezoelectricity. The piezoelectric effect reflects the coupling between the elastic and dielectric properties of the crystal. Piezoelectricity of high power piezo ceramics was first discovered by the Curie brothers on quartz crystals. A few months later, they also verified the inverse piezoelectric effect experimentally by applying strain and stress to the crystals when an electric field was applied. Electrical piezoelectric ceramics material barium titanate has been made in the United States, the former Soviet Union and Japan. Barium titanate piezoelectric ceramic device was born. In the early 84 ' s, another type of piezoelectric ceramic material that greatly outperformed barium titanate was successfully developed. Since then, the development of piezoelectric ceramics has entered a new phase. From the 94 ' s to the 74 ' s, the continuous improvement of piezoelectric ceramics was getting perfect. Such as the use of a variety of elements modified lead zirconate titanate binary piezoelectric ceramics, lead zirconate titanate of piezoelectric accelerometer sensor based ternary system, quaternary piezoelectric ceramics and other series of lead - free piezoelectric ceramics in recent years are also came into being. These materials have excellent performance, simple manufacture, low cost, wide application and are favored by people.