Note: A highly symmetrical piezoelectric motor with self-matching friction and large output force

J Zhang; W Meng; J Wang; W Ge; Y Hou; Q Lu

doi:10.1063/1.5013119

Note: A highly symmetrical piezoelectric motor with self-matching friction and large output force

Rev Sci Instrum. 2017 Nov;88(11):116104. doi: 10.1063/1.5013119.

Authors

J Zhang¹, W Meng¹, J Wang¹, W Ge², Y Hou¹, Q Lu¹

Affiliations

¹ Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China.
² Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.

PMID: 29195396
DOI: 10.1063/1.5013119

Abstract

We present a new stacked TunaDrive motor with two intact piezoelectric stacks being spring-clamped by a pair of parallel highly polished zirconia ceramic rods. Compared with the earlier version we presented with five stacks, it has a simpler and more compact structure and is much easier to build. Although the usage of piezoelectric material is cut by ∼35%, the motor can still provide a large output force of ∼1.92 N, which is nearly the same as that of the earlier version. The simple and symmetrical structure, high rigidity, and large output force make the new motor an ideal tool for coarse approach with nanometer precision.