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《Mechanical Engineer》 2006-09
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Study of Outer Driving Precision PZT Linear Step Actuator

LIU Jian- fang, YANG Zhi- gang, ZHAO Hong- wei, FAN Zun- qiang ( Jilin University, Changchun 130025, China)  
A new precision linear PZT actuator was proposed to improve its drive capabilities. The actuator is based on the piezoelectric (PZT) technology. It adopts the principle of bionics and works with a new method of stator initiative anchoring/ loosen and a distortion structure of double- side thin flexible hinge. It solved the problem of anchoring/loosen, frequency, journey, resolution and velocity. The experiment shows that the new linear PZT actuator worked with high frequency (40Hz), high speed (240μm/s), large travel (25mm), high resolution(0.04μm) and high load (47N). This kind of actuator will be applied for large travel and high resolution driving device, optics engineering, precision positioning and some micro- manipulation field.
【Fund】: 国家自然科学基金资助项目(50475010);; 吉林大学研究生创新基金资助项目(401004)
【CateGory Index】: TH703
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