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Modelling trilayer conjugated polymer actuators for their sensorless position control

Journal Article


Abstract


  • In this paper, we present a new model to describe the displacement response of a trilayer conjugated polymer actuator that can operate in dry environments. The proposed model based on the working principle of conjugated polymer actuators includes diffusion impedances combined with double layer capacitors and charge transfer resistors. The parameters of the model are estimated by using a nonlinear least square estimation method by comparing simulation and experimental results. The proposed model is very useful in predicting the impedance as well as the displacement response of the polymer actuators accurately. Based on the proposed model, an inversion-based controller not requiring an external sensor for position feedback data is implemented and compared with the experimental results. The experimental position control results have confirmed the feasibility and efficacy of the proposed model in describing the time response of the actuators and their position control without using externally provided position data. © 2012 Elsevier B.V.

Publication Date


  • 2012

Citation


  • Nguyen, C. Huu., Alici, G. & Wallace, G. G. (2012). Modelling trilayer conjugated polymer actuators for their sensorless position control. Sensors and Actuators A: Physical, 185 (October), 82-91.

Scopus Eid


  • 2-s2.0-84865602387

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5000

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 82

End Page


  • 91

Volume


  • 185

Issue


  • October

Place Of Publication


  • Switzerland

Abstract


  • In this paper, we present a new model to describe the displacement response of a trilayer conjugated polymer actuator that can operate in dry environments. The proposed model based on the working principle of conjugated polymer actuators includes diffusion impedances combined with double layer capacitors and charge transfer resistors. The parameters of the model are estimated by using a nonlinear least square estimation method by comparing simulation and experimental results. The proposed model is very useful in predicting the impedance as well as the displacement response of the polymer actuators accurately. Based on the proposed model, an inversion-based controller not requiring an external sensor for position feedback data is implemented and compared with the experimental results. The experimental position control results have confirmed the feasibility and efficacy of the proposed model in describing the time response of the actuators and their position control without using externally provided position data. © 2012 Elsevier B.V.

Publication Date


  • 2012

Citation


  • Nguyen, C. Huu., Alici, G. & Wallace, G. G. (2012). Modelling trilayer conjugated polymer actuators for their sensorless position control. Sensors and Actuators A: Physical, 185 (October), 82-91.

Scopus Eid


  • 2-s2.0-84865602387

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5000

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 82

End Page


  • 91

Volume


  • 185

Issue


  • October

Place Of Publication


  • Switzerland