✦ LIBER ✦

A linear ultrasonic motor using (K0.5Na0.5)NbO3 based lead-free piezoelectric ceramics

✍ Scribed by Jiamei Jin; Dandan Wan; Ying Yang; Qian Li; Meng Zha

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 916 KB
Volume: 165
Category: Article
ISSN: 0924-4247
DOI: 10.1016/j.sna.2010.10.017

No coin nor oath required. For personal study only.

✦ Synopsis

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.

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