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Sensors: Stretchable Capacitive Sensors of Torsion, Strain, and Touch Using Double Helix Liquid Metal Fibers (Adv. Funct. Mater. 20/2017)
Author(s) -
Cooper Christopher B.,
Arutselvan Kuralamudhan,
Liu Ying,
Armstrong Daniel,
Lin Yiliang,
Khan Mohammad Rashed,
Genzer Jan,
Dickey Michael D.
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201770124
Subject(s) - materials science , capacitive sensing , torsion (gastropod) , capacitance , composite material , electrical conductor , metal , liquid metal , core (optical fiber) , nanotechnology , electrode , electrical engineering , medicine , engineering , chemistry , surgery , metallurgy
Scanning electron micrographs of hollow elastic fibers. Injecting the core with liquid metal renders the fibers conductive. As Michael D. Dickey and co‐workers present in article number 1605630 , two or more fibers twisted together can sense large amounts of torsion due to changes in geometry, and therefore capacitance, between the fibers. Self‐capacitance between fingers and the metal in the fibers allows for touch sensing.