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Proceedings Paper

Optimal haptic feedback control of artificial muscles
Author(s): Daniel Chen; Thor Besier; Iain Anderson; Thomas McKay
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Paper Abstract

As our population ages, and trends in obesity continue to grow, joint degenerative diseases like osteoarthritis (OA) are becoming increasingly prevalent. With no cure currently in sight, the only effective treatments for OA are orthopaedic surgery and prolonged rehabilitation, neither of which is guaranteed to succeed. Gait retraining has tremendous potential to alter the contact forces in the joints due to walking, reducing the risk of one developing hip and knee OA. Dielectric Elastomer Actuators (DEAs) are being explored as a potential way of applying intuitive haptic feedback to alter a patient’s walking gait. The main challenge with the use of DEAs in this application is producing large enough forces and strains to induce sensation when coupled to a patient’s skin. A novel controller has been proposed to solve this issue. The controller uses simultaneous capacitive self-sensing and actuation which will optimally apply a haptic sensation to the patient’s skin independent of variability in DEAs and patient geometries.

Paper Details

Date Published: 8 March 2014
PDF: 6 pages
Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 90562K (8 March 2014); doi: 10.1117/12.2046491
Show Author Affiliations
Daniel Chen, Auckland Bioengineering Institute (New Zealand)
Thor Besier, Auckland Bioengineering Institute (New Zealand)
The Univ. of Auckland (New Zealand)
Iain Anderson, Auckland Bioengineering Institute (New Zealand)
The Univ. of Auckland (New Zealand)
Thomas McKay, Auckland Bioengineering Institute (New Zealand)

Published in SPIE Proceedings Vol. 9056:
Electroactive Polymer Actuators and Devices (EAPAD) 2014
Yoseph Bar-Cohen, Editor(s)

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