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dc.contributor.authorFagiani, R.en_US
dc.contributor.authorMassi, F.en_US
dc.contributor.authorChatelet, E.en_US
dc.contributor.authorBerthier, Y.en_US
dc.contributor.authorAkay, A.en_US
dc.date.accessioned2016-02-08T09:51:15Z
dc.date.available2016-02-08T09:51:15Z
dc.date.issued2011en_US
dc.identifier.issn0301-679X
dc.identifier.urihttp://hdl.handle.net/11693/21797
dc.description.abstractWhen a finger moves to scan the surface of an object (haptic sensing), the sliding contact generates vibrations that propagate in the finger skin activating the receptors (mechanoreceptors) located in the skin, allowing the brain to identify objects and perceive information about their properties. The information about the surface of the object is transmitted through vibrations induced by friction between the skin and the object scanned by the fingertip. The mechanoreceptors transduce the stress state into electrical impulses that are conveyed to the brain. A clear understanding of the mechanisms of the tactile sensing is fundamental to numerous applications, like the development of artificial tactile sensors for intelligent prostheses or robotic assistants, and in ergonomics. While the correlation between surface roughness and tactile sensation has already been reported in literature, the vibration spectra induced by the finger-surface scanning and the consequent activation of the mechanoreceptors on the skin have received less attention. In this paper, frequency analysis of signals characterizing surface scanning is carried out to investigate the vibration spectrum measured on the finger and to highlight the changes shown in the vibration spectra as a function of characteristic contact parameters such as scanning speed, roughness and surface texture. An experimental set-up is developed to recover the vibration dynamics by detecting the contact force and the induced vibrations; the bench test has been designed to guarantee reproducibility of measurements at the low amplitude of the vibrations of interest, and to perform measurements without introducing external noise. Two different perception mechanisms, as a function of the roughness wavelength, have been pointed out. The spectrum of vibration obtained by scanning textiles has been investigated. © 2011 Elsevier Ltd. All rights reserved.en_US
dc.language.isoEnglishen_US
dc.source.titleTribology Internationalen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.triboint.2011.03.019en_US
dc.subjectFriction induced vibrationsen_US
dc.subjectRoughnessen_US
dc.subjectTactile perceptionen_US
dc.subjectTextilesen_US
dc.subjectBench testsen_US
dc.subjectContact forcesen_US
dc.subjectContact parametersen_US
dc.subjectElectrical impulseen_US
dc.subjectExperimental setupen_US
dc.subjectExternal noiseen_US
dc.subjectFinger skinen_US
dc.subjectFrequency Analysisen_US
dc.subjectFriction induced vibrationen_US
dc.subjectInduced vibrationsen_US
dc.subjectLow-amplitudeen_US
dc.subjectMechanoreceptorsen_US
dc.subjectReproducibilitiesen_US
dc.subjectRobotic assistantsen_US
dc.subjectScanning speeden_US
dc.subjectSliding contactsen_US
dc.subjectStress stateen_US
dc.subjectSurface scanningen_US
dc.subjectSurface texturesen_US
dc.subjectTactile perceptionen_US
dc.subjectTactile sensationen_US
dc.subjectTactile sensingen_US
dc.subjectTactile sensorsen_US
dc.subjectVibration dynamicsen_US
dc.subjectVibration spectraen_US
dc.subjectChemical activationen_US
dc.subjectErgonomicsen_US
dc.subjectFrictionen_US
dc.subjectIntelligent robotsen_US
dc.subjectScanningen_US
dc.subjectSurface roughnessen_US
dc.subjectTextilesen_US
dc.subjectTribologyen_US
dc.subjectVibration analysisen_US
dc.titleTactile perception by friction induced vibrationsen_US
dc.typeArticleen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.citation.spage1100en_US
dc.citation.epage1110en_US
dc.citation.volumeNumber44en_US
dc.citation.issueNumber10en_US
dc.identifier.doi10.1016/j.triboint.2011.03.019en_US


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