A piezoelectric bending transducer comprises a flat, electrically conductive supporting body having piezoceramic coatings on both sides. Each coating has an inner contact area facing the supporting body and an outer contact area facing away from the supporting body. The piezoceramic coatings are omitted...http://www.google.es/patents/US6323583?utm_source=gb-gplus-sharePatente US6323583 - Piezoelectric transducer for incorporation into a module
Piezoelectric transducer for incorporation into a module
