A double B1-mode 4-layer laminated piezoelectric linear motor

Xiaotian Li; Zhijiang Chen; Shuxiang Dong

doi:10.1109/TUFFC.2012.2516

A double B1-mode 4-layer laminated piezoelectric linear motor

IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Dec;59(12):2752-7. doi: 10.1109/TUFFC.2012.2516.

Authors

Xiaotian Li¹, Zhijiang Chen, Shuxiang Dong

Affiliation

¹ Materials Science & Engineering Department, College of Engineering, Peking University, Beijing, China.

PMID: 23221224
DOI: 10.1109/TUFFC.2012.2516

Abstract

We report a miniature piezoelectric ultrasonic linear motor that is made of four Pb(Zr,Ti)O(3) (PZT) piezoelectric ceramic layers for low-voltage work. The 4-layer piezoelectric laminate works in two orthogonal first-bending modes for producing elliptical oscillations, which are then used to drive a contacting slider into continuous linear motion. Experimental results show that the miniature linear motor (size: 4 × 4 × 12 mm, weight: 1.7 g) can generate a large driving force of 0.48 N and a linear motion speed of up to 160 mm/s, using a 40 V(pp)/mm voltage drive at its resonance frequency of 64.5 kHz. The maximum efficiency of the linear motor is 30%.

Publication types

Research Support, Non-U.S. Gov't