Self-Sensing of Deflection, Force, and Temperature for Joule-Heated Twisted and Coiled Polymer Muscles via Electrical Impedance

@article{Weijde2017SelfSensingOD,
  title={Self-Sensing of Deflection, Force, and Temperature for Joule-Heated Twisted and Coiled Polymer Muscles via Electrical Impedance},
  author={Joost van der Weijde and Bram Smit and Michael Fritschi and Cornelis van de Kamp and Heike Vallery},
  journal={IEEE/ASME Transactions on Mechatronics},
  year={2017},
  volume={22},
  pages={1268-1275}
}
The recently introduced twisted and coiled polymer muscle is an inexpensive and lightweight compliant actuator. Incorporation of the muscle in applications that rely on feedback creates the need for deflection and force sensing. In this paper, we explore a sensing principle that does not require any bulky or expensive additional hardware: self-sensing via electrical impedance. To this end, we characterize the relation between electrical impedance on the one hand, and deflection, force, and… CONTINUE READING

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