Method for operating a piezo linear drive with a group of piezo stack actuators

摘要

the invention relates to a method for operating a piezolinearantriebs with a group of piezostapelaktoren which in a leadership or runner of drive, and the actuators, a common substrate, the mehrschichtkeramik - hybridanordnung posewithin a stack from the substrate, a first stapelteil as longitudinal and a second stapelteil as scheraktor trained and the latter with a wear-resistant endscheibe is fitted which clamp and / or scherkontakt with the rotor, and at least two ide ntische actuators being side by side,in order to schrittbetrieb two-way clamp and vorschubbewegungen execute.erfindungsgemu00e4u00df is a grobpositionierung drive in schrittmodus and so the adjacent actuators to execute two-way or antiphase reciprocal clamp and vorschubbewegungen electrically actuated, and for the feinpositionierung every second a stapelteile the actuators in parallel circuit and analog byso that in the area of the respective current cores with substantially reduced voltage and magnetic field strength of the target position of the rotor is adjustable.