The density of his surface charge is proportional to the mechanical stress, and when the material is exposed to the external electric field, its internal positive and negative charge center displacement can lead to mechanical deformation of the material, forming the size and point
Some materials under the action of mechanical stress, resulting in the internal positive and negative charge center relative displacement and polarization, resulting in the surface of the material at both ends of the symbol of the opposite charge of the charge phenomenon, known as the piezoelectric effect. With this performance of the ceramic into the pressure
In the moment when the ceramic applied a lot of pressure, the ceramic carrier within the directional movement of the formation of instantaneous current. Note that only instantaneous current! Like the general electronic lighters is to use piezoelectric ceramic ignition.
