Electro-Active Polymer Based Soft Tactile Interface for Wearable Devices

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This paper reports soft actuator based tactile stimulation interfaces applicable to wearable devices. The soft actuator is prepared by multi-layered accumulation of thin electro-active polymer (EAP) films. The multi-layered actuator is designed to produce electrically-induced convex protrusive deformation, which can be dynamically programmable for wide range of tactile stimuli. The maximum vertical protrusion is 650mm and the output force is up to 255 mN. The soft actuators are embedded into the fingertip part of a glove and front part of a forearm band, respectively. We have conducted two kinds of experiments with 15 subjects. Perceived magnitudes of actuator's protrusion and vibrotactile intensity were measured with frequency of 1 Hz and 191 Hz, respectively. Analysis of the user tests shows participants perceive variation of protrusion height at the finger pad and modulation of vibration intensity through the proposed soft actuator based tactile interface.
Publisher
IEEE COMPUTER SOC
Issue Date
2018-01
Language
English
Article Type
Article
Keywords

DIELECTRIC ELASTOMER ACTUATORS; DISPLAY; FABRICATION

Citation

IEEE TRANSACTIONS ON HAPTICS, v.11, no.1, pp.15 - 21

ISSN
1939-1412
DOI
10.1109/TOH.2018.2805901
URI
http://hdl.handle.net/10203/241545
Appears in Collection
ME-Journal Papers(저널논문)
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