Flextensional Piezoelectric Actuation - DSM - #2

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through the flexures that flattens out as the piezo material expands.

The comparison of the kinematic configurations of the FPA-80E and the FPA-1100C shows how the expansion of the piezo material can he used to create either an expansion/pushing (i.e., FPA-80E) action or a contracting/pulling (i.e., FPA-1100C) action. In both cases, the spring preload enables bi­directional motion as the piezo expands and contracts under a changing applied actuation voltage.

DSM's piezo-actuators harness the small precise amount of expansion generated by the piezoelectric effect to produce a wide range of actuator solutions. The Flextensionai Piezoelectric Actuator FPA design represents a compact, high-stiffness means of producing highly-amplified piezoelectric-controlled motion. DSM also produces a line of Leveraged Piezoelectric Actuators which are based on solid-state kinematic lever mechanisms and generally provide a higher dynamic bandwidth than the FPA series. With proper design, piezo-actuators have performance attributes and properties that can be valuable in precision positioning, vibration control, and scanning applications. Smooth, precise motion from the sub-nanometer to multiple-millimeter level is possible with a variety of solid-state actuation mechanisms.