Development of a piezo-driven 3-DOF stage with T-shape flexible hinge mechanism
 The stage is driven by three piezoelectric actuators (PEAs) and guided by a flexible hinge based mechanism with three symmetric T-shape hinges.  The T-shape flexure hinge is composed of three leaf-spring hinge subsections connected at the together like a T-joint.  Thus, the T-shape flexure hinge can provide the in plane motion with relatively large out-of-plane stiffness.  It is demonstrated from the computational analyses that the proposed T-shape flexure hinge can provide high natural frequency, large working range and high motion dexterity.  The experiments results showed that the stage can provide for good performance.
stage flexible hinge mechanism piezoelectric actuators