Inflated dielectric elastomer actuator for eyeball's movements: fabrication, analysis and experiments

Yanju Liu; Liang Shi; Liwu Liu; Zhen Zhang; Jinsong Leng

doi:10.1117/12.775946

10 April 2008 Inflated dielectric elastomer actuator for eyeball's movements: fabrication, analysis and experiments

Yanju Liu, Liang Shi, Liwu Liu, Zhen Zhang, Jinsong Leng

Proceedings Volume 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008; 69271A (2008) https://doi.org/10.1117/12.775946
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

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.

Citation Download Citation

Yanju Liu, Liang Shi, Liwu Liu, Zhen Zhang, and Jinsong Leng "Inflated dielectric elastomer actuator for eyeball's movements: fabrication, analysis and experiments", Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271A (10 April 2008); https://doi.org/10.1117/12.775946

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