期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 165, 期 2, 页码 410-414出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2010.10.017
关键词
Lead-free; Piezoelectric ceramics; Ultrasonic motor; Quadrate plate
资金
- National Natural Science Foundation of China [50735002, 10874090, 50775109]
- NFSC-Guangdong [U0934004]
- NUAA [NJ2010013]
A linear ultrasonic motor using lead-free piezoelectric ceramics equipped with quadrate plate transducers has been developed. Four lead free piezoelectric plates driving elements formed a multi-driving-end, producing a large thrust and output velocity. The design of the stator enables two operating modes with coincident frequency. A microscopic view suggests that the material particles at the top of four projections move in ellipses and drive the slider alternately via frictional forces to realize linear motion. The fabrication and characterization of the lead-free piezoelectric ceramics achieving the drive of stator were given in the context. (C) 2010 Elsevier B.V. All rights reserved.
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