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Super-resolution wearable electrotactile rendering system

Version 2 2024-06-19, 15:29
Version 1 2023-02-19, 22:48
journal contribution
posted on 2024-06-19, 15:29 authored by W Lin, D Zhang, WW Lee, X Li, Y Hong, Q Pan, R Zhang, G Peng, HZ Tan, Z Zhang, Lei WeiLei Wei, Z Yang
The human somatosensory system is capable of extracting features with millimeter-scale spatial resolution and submillisecond temporal precision. Current technologies that can render tactile stimuli with such high definition are neither portable nor easily accessible. Here, we present a wearable electrotactile rendering system that elicits tactile stimuli with both high spatial resolution (76 dots/cm 2 ) and rapid refresh rates (4 kHz), because of a previously unexplored current-steering super-resolution stimulation technique. For user safety, we present a high-frequency modulation method to reduce the stimulation voltage to as low as 13 V. The utility of our high spatiotemporal tactile rendering system is highlighted in applications such as braille display, virtual reality shopping, and digital virtual experiences. Furthermore, we integrate our setup with tactile sensors to transmit fine tactile features through thick gloves used by firefighters, allowing tiny objects to be localized based on tactile sensing alone.

History

Journal

Science Advances

Volume

8

Pagination

eabp8738-

Location

United States

ISSN

2375-2548

eISSN

2375-2548

Language

en

Publication classification

C1 Refereed article in a scholarly journal

Issue

36

Publisher

American Association for the Advancement of Science (AAAS)

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