Showing papers on "Bimorph published in 1972"
Patent•
06 Apr 1972TL;DR: In this article, an intruder detection system using a piezoelectric transducer responsive to two distinctive pressure signals comprises a hydrostatically balanced, two terminal bimorph assembly.
Abstract: The disclosed invention is an intruder detection system wherein the piezoelectric transducer responsive to two distinctive pressure signals comprises a hydrostatically balanced, two terminal bimorph assembly.
4 citations
TL;DR: In this article, an infinitely extended, piezoelectric bimorph is considered, consisting of two piezoceramic plates, glued to each other with in between an infinitesimally thin electrode.
Abstract: An infinitely extended, piezoelectric bimorph is considered, consisting of two piezoceramic plates, glued to each other with in between an infinitesimally thin electrode. The bimorph is deformed by the application of a constant potential difference between shorted circular electrodes on the outer faces and the central electrode. By using Hankel transforms the linear, piezoelectric relations are reduced to dual integral equations for the charge on the outer electrodes. These equations are solved numerically. Also the charge on the central electrode and the potential on the faces are computed. The computed quantities are compared with corresponding values obtained from an approximated theory.
2 citations
TL;DR: In this article, the authors describe novel piezoelectric devices for micro-movement applications, such as ceramic composite plates, cylindrical tubes, composite discs etc which appear as servo controllers in closed-loop systems.