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A wearable skin-stretching tactile interface for human-robot and human-human communication

Research output: Contribution to journalArticle

Original languageEnglish
Article number8632684
Pages (from-to)1641-1646
Number of pages6
JournalIEEE Robotics and Automation Letters
Volume4
Issue number2
Early online date1 Feb 2019
DOIs
DateAccepted/In press - 14 Jan 2019
DateE-pub ahead of print - 1 Feb 2019
DatePublished (current) - 1 Apr 2019

Abstract

Currently, the majority of wearable robotic haptic feedback devices rely on vibrations for relaying sensory information to the user. While this can be very effective, vibration is a limited physical stimulation, appearing rarely in the natural world. In many cases of human-robot and human-human interactions, a more natural, affective and effective tactile interaction is needed to provide well-rounded and varied stimuli. In this work we present the Super-Cutaneous Wearable Electric Empathic Stimulator (SCWEES), a tactile device that gently stretches and squeezes the surface of the skin. Our hypothesis is that this device creates a pleasant, unobtrusive sensation that can be used to mediate social interactions or for delivering subtle alerts. We present the design of the SCWEES, a lightweight 3D printed semi-flexible structure that attaches to the skin at two points and actuates via two shape-memory alloy coil actuators. We evaluate the SCWEES through a range of human interaction experiments. These include evaluation of stimulation strength and pleasantness, compression and expansion, and ability to convey non-disruptive notifications. Quantitative and qualitative results show that the SCWEES generates a pleasant sensation, can convey useful information in human-machine interactions, and its affective stimulation is less disruptive than conventional vibratory tactile stimulation when the user is engaged in a task.

    Research areas

  • Skin, Force, haptic interfaces, haptics and haptic interfaces, vibrations, affective tactile stimulation, robot sensing systems, social human-robot interaction, soft robot applications, actuators

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    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via IEEE at https://ieeexplore.ieee.org/document/8632684. Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 3 MB, PDF-document

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