Experimental verification of displacement control on integrated ionic polymer-metal composite actuators with stochastic on/off controller

Keishiro Kimura; Norihiro Kamamichi

doi:10.1117/12.2259758

17 April 2017 Experimental verification of displacement control on integrated ionic polymer-metal composite actuators with stochastic on/off controller

Keishiro Kimura, Norihiro Kamamichi

Author Affiliations +

Proceedings Volume 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017; 101632U (2017) https://doi.org/10.1117/12.2259758
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

An ionic polymer-metal composite (IPMC) actuator is one of polymer-based soft actuators. It is produced by chemically plating gold or platinum on both surface of a perfluorosulfonic acid membrane which is known as an ion-exchange membrane. It is able to be activated by a simple driving circuit and generate a large deformation under a low applied voltage (0.5-3 V). However, individual difference and characteristics changes from environmental conditions should be considered for realizing a stable or precise control. To solve these problems, we applied a stochastic ON/OFF controller to an integrated IPMC actuator with parallel connections. The controller consists of a central controller and distributed controllers. The central controller broadcasts a control signal such as an error signal to distributed controllers uniformly. The distributed controllers switch the ON/OFF states based on the broadcasted signal stochastically. The central controller dose not measure the states of each IPMC actuator, and the control signals is calculated by using the output signal of the integrated actuator and reference signal. The validity of the applied method was investigated through numerical simulations and experiments.

Citation Download Citation

Keishiro Kimura and Norihiro Kamamichi "Experimental verification of displacement control on integrated ionic polymer-metal composite actuators with stochastic on/off controller", Proc. SPIE 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017, 101632U (17 April 2017); https://doi.org/10.1117/12.2259758

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