Piezoelectricity is the ability of some materials to generate an electric potential in response to applied mechanical stress. This may take the form of a separation of electric charge across the crystal lattice. If the material is not short-circuited, the applied charge induces a voltage across the material. The word is derived from the Greek piezein, which means to squeeze or press.
Source: Wikipedia
URL: http://en.wikipedia.org/wiki/Piezoelectric
Source: Wikipedia
URL: http://en.wikipedia.org/wiki/Piezoelectric
