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A Soft Pneumatic Haptic Actuator Mechanically Programmed for Providing Mechanotactile Feedback

Published online by Cambridge University Press:  11 February 2019

Juan J. Huaroto Open the ORCID record for Juan J. Huaroto [Opens in a new window] ,
Victor Ticllacuri ,
Etsel Suarez ,
Robert Ccorahua  and
Emir A. Vela
Juan J. Huaroto
Affiliation:
Department of Engineering, School of Engineering, Facultad de Ciencias y Filosofia, and Laboratorios de Investigacion y Desarrollo - LID, Universidad Peruana Cayetano Heredia, Lima, Peru.
Victor Ticllacuri
Affiliation:
Department of Engineering, School of Engineering, Facultad de Ciencias y Filosofia, and Laboratorios de Investigacion y Desarrollo - LID, Universidad Peruana Cayetano Heredia, Lima, Peru.
Etsel Suarez
Affiliation:
Department of Engineering, School of Engineering, Facultad de Ciencias y Filosofia, and Laboratorios de Investigacion y Desarrollo - LID, Universidad Peruana Cayetano Heredia, Lima, Peru.
Robert Ccorahua
Affiliation:
Department of Engineering, School of Engineering, Facultad de Ciencias y Filosofia, and Laboratorios de Investigacion y Desarrollo - LID, Universidad Peruana Cayetano Heredia, Lima, Peru.
Emir A. Vela*
Affiliation:
Department of Engineering, School of Engineering, Facultad de Ciencias y Filosofia, and Laboratorios de Investigacion y Desarrollo - LID, Universidad Peruana Cayetano Heredia, Lima, Peru. Department of Electrical and Computer Engineering at The University of New Mexico, USA.
*
*(Email: emir.vela@upch.pe)
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Abstract

Tactile sense provides us with the necessary information and feedback to determined tasks. Within this context, haptic devices represent a growing and highly interesting field to be included in biomedical devices, teleoperation applications, and video games. These devices are usually developed with rigid materials, motors, and mechanisms to provide tactile feedback to individuals that corresponds to a defined task, producing pressure, tangential force or vibrations as stimuli on the skin. Here, we present a prototype of a soft pneumatic haptic device based on an inflatable hyperelastic membrane, that can provide two stimuli over skin such as pression and traction with only one input of energy. The device was fabricated using different types of silicone materials and membrane shapes. This exhibits experimentally a maximum vertical deformation of 13 mm and a tangential displacement of 10 mm at 7 kPa. These two mechanically programmed movements open the possibility of using this technology in mechano-tactile feedback for wearable devices, with low-cost hardware, soft interaction between devices and skin, and lightweight.

Keywords

membranedevices

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Type
Articles
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MRS Advances , Volume 4 , Issue 19: Broader Impact/Machine Learning and Robotics , 2019 , pp. 1131 - 1136
Copyright
Copyright © Materials Research Society 2019 

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