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Appl. Sci. 2017, 7(10), 972; doi:10.3390/app7100972

Enhanced Design of a Soft Thin-Film Vibrotactile Actuator Based on PVC Gel

Interaction Laboratory, Advanced Research Technology Center, Korea University of Technology and Education, Chungjeol-ro, Byeongcheon-myeon, Dongnam-gu, Cheonan 330-708, ChungNam, Korea
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Received: 26 August 2017 / Revised: 19 September 2017 / Accepted: 20 September 2017 / Published: 22 September 2017
(This article belongs to the Section Materials)
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Abstract

We fabricated a soft thin-film vibrotactile actuator, which can be easily inserted into wearable devices, based on an electroactive PVC gel. One of the most important factors in fabricating a soft and thin vibrotactile actuator is to create vibrational force strong enough to stimulate human skin in a wide frequency range. To achieve this, we investigate the working principle of the PVC gel and suggest a new structure in which most of electric energy contributes to the deformation of the PVC gel. Due to this structure, the vibrational amplitude of the proposed PVC gel actuator could considerably increase (0.816 g (g = 9.8 m/s2) at resonant frequency). The vibrotactile amplitude is proportional to the amount of input voltage. It increased from 0.05 g up to 0.416 g with increasing applied voltages from 200 V to 1 kV at 1 Hz. The experimental results show that the proposed actuator can create a variety of haptic sensations. View Full-Text
Keywords: tactile display; haptics; transducer; polyvinyl chloride; acetyl tributyl citrate tactile display; haptics; transducer; polyvinyl chloride; acetyl tributyl citrate
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Park, W.-H.; Shin, E.-J.; Kim, S.-Y. Enhanced Design of a Soft Thin-Film Vibrotactile Actuator Based on PVC Gel. Appl. Sci. 2017, 7, 972.

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