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S-Shaped Nonlinearity in Electrical Resistance of Electroactive Supercoiled Polymer Artificial Muscle
Kazuya TADA Masaki KAKU
IEICE TRANSACTIONS on Electronics
Publication Date: 2020/02/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
Category: Organic Molecular Electronics
actuator, supercoiled polymer artificial muscle, twisted and coiled polymer actuator, electrical resistance, mathematical model,
Full Text: FreePDF(271.9KB)
S-shaped nonlinearity is found in the electrical resistance-length relationship in an electroactive supercoiled polymer artificial muscle. The modulation of the electrical resistance is mainly caused by the change in the contact condition of coils in the artificial muscle upon deformation. A mathematical model based on logistic function fairly reproduces the experimental data of electrical resistance-length relationship.