A piezoelectric bimorph micro-gripper with micro-force sensing

Author

Huang, Xinhan ; Cai, Jianhua ; Wang, Min ; Lv, Xiadong

Author_Institution

Dept. of Control Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2005

fDate

27 June-3 July 2005

Abstract

A new piezoelectric bimorph micro-gripper with micro-force sensing is presented in the paper. The micro-gripper is based on the dual cantilevers structure and is driven by two piezoelectric bimorphs. Sticking two strain gauges on both sides of the base of the piezoelectric bimorph to sense free end transmutation of the bimorph, we can get displacement-voltage relationship and force-strain relationship respectively. As a result the gripper has the ability to detect micro-force when it is gripping micro-parts. The experiment results show that the gripper works reliably and safely. It is satisfied with the tasks of micro assembly.

Keywords

cantilevers; force sensors; grippers; micromanipulators; microrobots; piezoelectric devices; strain gauges; displacement-voltage relationship; dual cantilever structure; force-strain relationship; micro assembly robots; micro-force sensing; piezoelectric bimorph micro-gripper; strain gauges; Actuators; Capacitive sensors; Grippers; Microassembly; Piezoelectric materials; Piezoelectric polarization; Robot sensing systems; Robotic assembly; Sensor systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Acquisition, 2005 IEEE International Conference on

Print_ISBN

0-7803-9303-1

Type

conf

DOI

10.1109/ICIA.2005.1635071

Filename

1635071