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A touch sensor is essentially a transducer that transforms physical touches into measurable electric signals. Here, we report a fabric-based self-powered triboelectric sensor array. Individual sensing units are constituted by intersections between row electrode lines and column electrode lines that have complementary patterns. When a sensing unit is touched, surface triboelectrification coupled with...
A fully enclosed bearing-structured self-powered rotation sensor (SPRS) is developed for multi-tasking motion measurement. Due to contact electrification between fine-sized rolling beads and a pair of planar electrodes, the SPRS produce cycled electric signals when attached to a revolving axis. They are then analyzed to reveal the rotation rate of the axis and other corresponding derivable parameters,...
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