Physik Instŕumente (pi) Gmbh & Co. Kg

Pi Ceramic Gmbh Keramische Technologien Und Bauelemente

Pi Ceramic Gmbh

Physik Instrumente Gmbh & Co. Kg

Patrick Pertsch

Harry Marth

Eberhard Hennig

Daniel Kopsch

Astrid Heinzmann

Stefan Richter

Oskar Xiabin Zhao

Eike Wehrsdorfer

Rong Liang

The invention relates to an actuator system comprising at least four electrically controllable, longitudinally adjustable actuators, to each of which a compressive force is applied in the direction of the longitudinal adjustment thereof by means of a separate housing that has an integrally formed resilient portion, each housing being designed as a single piece along with a base element shared by all housings. The invention further relates to an array comprising a plurality of actuator systems of said type.

Actuator system

The invention relates to a method for the production of a monolithic multilayer actuator, a corresponding monolithic multilayer actuator, as well as an external contact for a monolithic multilayer actuator. According to the invention specific microdisturbances are incorporated in the actuator structure along the longitudinal axis of the stack essentially parallel and spaced to the inner electrodes in the area of the at least two opposite outer surfaces to which the inner electrodes known per se are brought out, which at the earliest during polarisation of the actuator are subject to a pregiven, limited, stress-reducing growth into the interior and/or towards the outer electrode, wherein additionally the basic metallic coating and/or the external contact is formed elongation-resistant or elastic at least in the area of the microdisturbances.

Method for the production of monolithic multilayer actuator monolithic multilayer actuator made of a piezoceramic or electrostrictive material and external electrical contact for a monolithic multilayer actuator

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Hermsdorf, Germany

Patrick Pertsch