A triboelectric-piezoresistive hybrid sensor for precisely distinguishing transient processes in mechanical stimuli
(Ein triboelektrischer-piezoresistiver Hybridsensor zur genauen Unterscheidung transienter Prozesse während mechanischer Stimuli)
As a pivotal component in human-machine interface and autonomous robot, tactile sensors are imperative to own extra capability of perceiving transient mechanical stimuli, rather than remaining in the static sensing regime. In this work, a hybrid tactile sensor is proposed, which integrates a porous polydimethylsiloxane (PDMS) based triboelectric nanogenerator active sensing unit and a conductive carbon black (CB)/thermoplastic polyurethane (TPU) composites based piezoresistive sensing unit. This hybrid sensor responds well to both static and transient mechanical excitations, such that the entire process of "approach-contact-press-release-separation" in a tactile stimulus can be precisely distinguished. In addition, this sensor can detect the approaching and separating speed up to 100 mm?s-1, with a good linearity between the contact or separation speed and the triboelectric voltage output. The two signals from the hybrid sensor can be combined to generate comprehensive and insightful information about a mechanical stimulus and differentiate nuances among similar stimuli. We demonstrate the application of the hybrid sensor as part of a smart boxing-training glove, which is capable of identifying different boxing punches and revealing detailed information about the impact of each punch.
© Copyright 2020 Nano Energy. Elsevier. Alle Rechte vorbehalten.
Schlagworte: | Boxen Technik Bewegung Hand Untersuchungsmethode Technologie Mechanik Bewegungsschnelligkeit Sensor |
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Notationen: | Kampfsportarten Naturwissenschaften und Technik |
DOI: | 10.1016/j.nanoen.2020.105216 |
Veröffentlicht in: | Nano Energy |
Veröffentlicht: |
2020
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Jahrgang: | 78 |
Seiten: | 105216 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |