Piezoelectric actuator, e.g. for operating mechanical component, has actuator part piezo layers, sensor piezo layers integrated into one component so individual sensor piezo layers are at defined intervals between actuator piezo layers
The device (1) has a multi layer structure of piezo layers perpendicular to the working direction (6,7), internal electrodes (2,3) between the piezo layers for operating the actuator when an external voltage is applied via external electrodes and further piezo layers with internal electrodes (8,9) f...
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