Piezo actuators

Technology

Piezo actuators make use of the deformation of the piezoelectric material when an electric field is applied.

The high resolution of the change in length and large mechanical load capacity of piezoelectric ceramic are of particular interest in high-tech fields (semi-conductors, optics and telecommunications, etc.), and also, to an increasing extent, in the automotive field (fuel injection systems), for micropumps, pneumatic valve technology and vibration damping. 
 

Multilayer linear actuators

Ceramic multilayer linear actuator products harness the full potential of the piezoelectric effect at very low operating voltages.

Multilayer piezoelectric actuators are ­co-fired multilayer ceramics typically with a height up to 2-3mm and with up to 100 ceramic layers. 

Multilayer piezoelectric stack actuators are made of two or several single actuators glued together. The purpose of the stacking is to obtain more displacement than can be achieved by a single actuator.
 

Multilayer bending actuators

Ceramic multilayer bender products harness the full potential of the piezoelectric effect at very low operating voltages.  

Multilayer piezoelectric benders are single co-fired ceramic components with ceramic layers and internal electrodes configured as to generate a bending mode.

Shear actuators

Based on the piezoelectric shear mode, shear actuators can be made more compact and have higher resonant frequencies than conventional piezo actuators. In addition, their low capacitance results in reduced power requirements for a given generated displacement in dynamic operation. 

Bender plate principle

Bender ring principle