PLANAR PIEZOELECTRIC ACTUATOR PROVIDING A LARGE SHEAR MOVEMENT

摘要

An actuator providing a large shear movement in a chosen direction. The angle of inclination of the fibres relative to the chosen direction is larger than 2° and smaller than 40°; the spaces between the piezoelectric fibres of the active layer are filled with an incompressible elastic material; the active layer comprises at least two dimensionally stable elongate elements parallel to the chosen direction; the ends of each fibre are adhesively bonded to said dimensionally stable elements using a rigid adhesive; and said dimensionally stable elements are adhesively bonded, by a rigid adhesive, to said electrode-bearing layers.