Tactile perception by friction induced vibrations
Author
Fagiani, R.
Massi, F.
Chatelet, E.
Berthier, Y.
Akay, A.
Date
2011Source Title
Tribology International
Print ISSN
0301-679X
Volume
44
Issue
10
Pages
1100 - 1110
Language
English
Type
ArticleItem Usage Stats
154
views
views
211
downloads
downloads
Abstract
When 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.
Keywords
Friction induced vibrationsRoughness
Tactile perception
Textiles
Bench tests
Contact forces
Contact parameters
Electrical impulse
Experimental setup
External noise
Finger skin
Frequency Analysis
Friction induced vibration
Induced vibrations
Low-amplitude
Mechanoreceptors
Reproducibilities
Robotic assistants
Scanning speed
Sliding contacts
Stress state
Surface scanning
Surface textures
Tactile perception
Tactile sensation
Tactile sensing
Tactile sensors
Vibration dynamics
Vibration spectra
Chemical activation
Ergonomics
Friction
Intelligent robots
Scanning
Surface roughness
Textiles
Tribology
Vibration analysis
Permalink
http://hdl.handle.net/11693/21797Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.triboint.2011.03.019Collections
Related items
Showing items related by title, author, creator and subject.
-
Separating nut-shell pieces from hazelnuts and pistachio kernels using impact vibration analysis
Habiboǧlu, Yusuf Hakan; Sevimli, Rasim Akın; Çetin, A. Enis; Pearson, T.C. (IEEE, 2013)In this article nut-shell pieces are separated from pistachio kernels and hazelnut kernels using impact vibration analysis. Vibration signals are recorded and analyzed in real-time. Mel-kepstral feature parameters and line ... -
Keepsake : meanings, practices and tactics of making and preserving memory
Sağdıç, Kalben (Bilkent University, 2010)This study is an attempt to conceptualize what a “keepsake” is within the context of subjective and social usage in relation to death and mourning. The phenomenon of memory keeping is examined not only as a subjective ... -
Measurement of sound, vibration and friction between soft materials under light loads
Akay, A.; Echols, B.; Ding, J.; Dussaud, A.; Lips, A. (Elsevier, 2012-02-15)Tactile perception of materials and surface texture involves friction under light normal loads and is fundamental to further advancing areas such as tactile sensing, haptic systems used in robotic gripping of sensitive ...