Wissenschaftliche Zeitschrift der TU Dresden vol:36 issue:2 pages:53-57
Young Researchers Meeting date:1987
The detection of a strong piezoelectric effect in the fluoropolymer polyvinylidene fluoride (PVDF) was the beginning of the development of sensors and transducer technology. The structure of PVDF, which is derived from polymerization of CF6=CH2, and the production of films are described. The general relationships between the electrical field, the dielectric shift, the mechanical stress and the elastic deformation are derived. The measurement of the piezoelectric properties of very thin polymer foils is carried out using the Rezvani/Linvill method. The measuring equipment is schematically illustrated. Piezoelectric PVDF foils are used in supersonic transducers, microphones, hydrophones, power, pressure and acceleration equipment.