Piezoelectric Sensors


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Piezoelectric Sensors
Piezoelectric Sensors
<emphasis role="bold">Piezoelectric Materials</emphasis> Piezoelectric materials produce an electrical voltage when they are subjected to mechanical stress or deformation, and their dimensions change when they are subjected to an electric field. On the microscopic level, the structure of a material normally consists of uncharged randomly arranged dipoles. In a piezoelectric material, the dipoles are arranged along a single axis. When the material is subjected to a mechanical stimulus, such as stress or deformation, the dipoles shift from the axis, rearrange, and cause the charges to become unbalanced. This produc…
Citation
Siamak Najarian; Javad Dargahi; Ali Abouei Mehrizi: Artificial Tactile Sensing in Biomedical Engineering. Piezoelectric Sensors, Chapter (McGraw-Hill Professional, 2009), AccessEngineering Export