Texture design for light touch perception

S. Zhang, X. Zeng, D.T.A. Matthews, A. Igartua, E. Rodriguez Vidal, J. Contreras Fortes, E. Van Der Heide

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    This study focused on active light touch with predefined textures specially-designed for tactile perception. The counter-body material is stainless steel sheet. Three geometric structures (grid, crater and groove) were fabricated by pulsed laser surface texturing. A total number of twenty volunteers participated in the research which contains two parts: perception tests and skin friction measurements. The perception tests focused mainly on the participants' perceptual attributes: perceived roughness and perceived stickiness. For the skin friction measurements, a multi-axis force/torque transducer was used to measure the normal force and friction force between skin and counter-surface along with the fingertip position. The results of the predefined textures showed the ability to reduce skin friction due to the reduction of contact area. Moreover, the participants' perceptual attributes were greatly influenced by the predefined micro-structures in the light touch regime.
    Original languageEnglish
    Pages (from-to)25-34
    Number of pages10
    JournalBioSurface and biotribology
    Issue number1
    Publication statusPublished - Mar 2017


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