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Proceedings Paper

Inflated dielectric elastomer actuator for eyeball's movements: fabrication, analysis and experiments
Author(s): Yanju Liu; Liang Shi; Liwu Liu; Zhen Zhang; Jinsong Leng
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Paper Abstract

Bio-mimetic actuators are inspired to the human or animal organ and they are aimed at replicating actions exerted by the main organic muscles. We present here an inflated dielectric Electroactive Polymer actuator based on acrylic elastomer aiming at mimicing the ocular muscular of the human eye. Two sheets of polyacrylic elastomer coated with conductive carbon grease are sticked to a rotatable backbone, which function like an agonist-antagonist configuration. When stimulating the two elastomer sheets separately, the rotatable mid-arc of the actuator is capable of rotating from -50° to 50°. Experiments shows that the inflated actuator, compared with uninflated one, performs much bigger rotating angle and more strengthened. Connected with the actuator via an elastic tensive line, the eyeball rotates around the symmetrical axes. The realization of more accurate movements and emotional expressions of our native eye system is the next step of our research and still under studied. This inflated dielectric elastomer actuator shows as well great potential application in robofish and adaptive stucture.

Paper Details

Date Published: 10 April 2008
PDF: 8 pages
Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271A (10 April 2008); doi: 10.1117/12.775946
Show Author Affiliations
Yanju Liu, Harbin Institute of Technology (China)
Liang Shi, Harbin Institute of Technology (China)
Liwu Liu, Harbin Institute of Technology (China)
Zhen Zhang, Harbin Institute of Technology (China)
Jinsong Leng, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 6927:
Electroactive Polymer Actuators and Devices (EAPAD) 2008
Yoseph Bar-Cohen, Editor(s)

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