Self-sensing properties of carbon-polymer composite (CPC) actuators

Karl Kruusamäe; Andres Punning; Alvo Aabloo

doi:10.1117/12.880386

28 March 2011 Self-sensing properties of carbon-polymer composite (CPC) actuators

Karl Kruusamäe, Andres Punning, Alvo Aabloo

Proceedings Volume 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011; 79760Q (2011) https://doi.org/10.1117/12.880386
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

CPC (carbon-polymer composite) is a type of low voltage electromechanically active material, which is often built using two layers of electrodes containing nanoporous carbon separated by a thin ion-permeable polymer film; ionic liquid is used as electrolyte. In cantilever configuration, while low voltage (3 V) is applied to these electrodes, the CPC sheet undergoes bending. To date, virtually no research into sensing properties of these materials has been conducted. In order to determine the tip displacement (curvature) of the CPC actuator, change of surface resistance in the process of bending is measured. Within the scope of this paper, it is also to investigate whether the acquired signals are feasible for use as a feedback to the actuator's driving mechanism and thus creating a self-sensing CPC device. Experimental data is presented to report that both resistive and capacitive effects are present on surface electrodes and alter during the actuator's work-cycle.

Citation Download Citation

Karl Kruusamäe, Andres Punning, and Alvo Aabloo "Self-sensing properties of carbon-polymer composite (CPC) actuators", Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79760Q (28 March 2011); https://doi.org/10.1117/12.880386

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