Precise PZT linear step actuator

A new precision linear PZT actuator is proposed to improve its drive capabilities that is based on the piezoelectric (PZT) technology. It adopts the principle of bionics and works in a new mode of stator initiative anchoring/loosening and a distortion structure of double-side thin flexible hinge,which has solved the problem of anchoring/loosening, frequency, journey, resolution and velocity. The experiment shows that the new linear PZT actuator works at a high frequency of 100 Hz, high speed of 30 mm/min, large travel above 10 mm, high resolution of 0.05 μm and high load ((100 N)).