Smart Mater. Struct. volume 23, issue 5, P055006 2014 DOI: 10.1088/0964-1726/23/5/055006 View full text
|
|
Share
Matthias C Wapler, Moritz Stürmer, Jens Brunne, Ulrike Wallrabe

Abstract: We present a method to produce in-plane polarized piezo films with a freely adjustable ratio of the strains in orthogonal in-plane directions. They can be used in piezo bending actuators with a tunable curvature profile. The strains are obtained as mean strains from a periodic polarization pattern produced by a suitable doubly interdigitated electrode structure. This mechanism is demonstrated for several examples using PZT sheets. We further discuss how this tuning and the parameters of the electrode layout a…

expand abstract