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Proceedings Paper

Control system for conducting polymer actuators
Author(s): Baohua Qi; Wen Lu; Benjamin R. Mattes
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Paper Abstract

Although conducting polymer (CP) actuators can operate with just a few volts and generate much higher forces than natural muscle, their poor dynamic performance limits their applications. A control system scheme to increase their dynamic performance is presented in this paper, based on the analysis of CP actuator models. By using a closed-loop control system, the potential abilities of CP actuators are exploited more fully. Experimental results show that, for a CP actuator fabricated from a commercially available polyaniline fiber PANIONT and an aqueous HCl electrolyte, use of a control system in the oxidization process, decreased settling time (transient time) by 87.4%; in the reduction process, settling time decreased more than 94.2%. The performance improvements from using control systems depend on the maximum signal the CP actuator can be burdened with, not simply on the performance of the CP actuators themselves. The possibilities and limitations of actuator control systems may determine the CP actuators that can eventually be incorporated into practical devices.

Paper Details

Date Published: 11 July 2002
PDF: 8 pages
Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); doi: 10.1117/12.475183
Show Author Affiliations
Baohua Qi, Santa Fe Science and Technology, Inc. (United States)
Wen Lu, Santa Fe Science and Technology, Inc. (United States)
Benjamin R. Mattes, Santa Fe Science and Technology, Inc. (United States)


Published in SPIE Proceedings Vol. 4695:
Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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