spaceR: Knitting Ready-Made, Tactile, and Highly Responsive Spacer-Fabric Force Sensors for Continuous Input

Roland Aigner, Mira Haberfellner, Michael Haller

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

1 Citation (Scopus)

Abstract

With spaceR, we present both design and implementation of a resistive force-sensor based on a spacer fabric knit. Due to its softness and elasticity, our sensor provides an appealing haptic experience. It enables continuous input with high precision due to its innate haptic feedback and can be manufactured ready-made on a regular two-bed weft knitting machine, without requiring further post-processing steps. For our multi-component knit, we add resistive yarn to the filler material, in order to achieve a highly sensitive and responsive pressure sensing textile. Sensor resistance drops by ∼90% when actuated with moderate finger pressure of 2 N, making the sensor accessible also for straightforward readout electronics. We discuss related manufacturing parameters and their effect on shape and electrical characteristics and explore design opportunities to harness visual and tactile affordances. Finally, we demonstrate several application scenarios by implementing diverse spaceR variations, including analog rocker- and four-way directional buttons, and show the possibility of mode-switching by tracking temporal data.

Original languageEnglish (American)
Title of host publicationUIST 2022 - Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology
PublisherAssociation for Computing Machinery
Pages68:1-68:15
Number of pages15
ISBN (Electronic)9781450393201
DOIs
Publication statusPublished - 29 Oct 2022
EventUIST '22: The 35th Annual ACM Symposium on User Interface Software and Technology - Bend, United States
Duration: 29 Nov 20212 Nov 2022

Publication series

NameUIST 2022 - Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology

Conference

ConferenceUIST '22: The 35th Annual ACM Symposium on User Interface Software and Technology
Country/TerritoryUnited States
CityBend
Period29.11.202102.11.2022

Keywords

  • e-textiles
  • knitting
  • pressure sensor
  • resistive sensor
  • spacer fabric
  • textile interface

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