Title :
Identification of various kinds of papers using multi-axial tactile sensor with micro-cantilevers
Author :
Watanabe, K. ; Sohgawa, Masayuki ; Kanashima, Takeshi ; Okuyama, Masanori ; Norna, H.
Author_Institution :
Osaka Univ., Toyonaka, Japan
Abstract :
Various kinds of papers have been identified by active touch of a multi-axial tactile sensor which has micro-cantilevers with strain gauge film on Si. When fine surface of the standard surface roughness scale and the printed stripe pattern on a banknote have been scanned by the tactile sensor, it allows to measure such fine roughness as a resistance change of the gauge film, and the triangular unevenness could be obtained down to 20 μm. Transient responses of the resistance change have been obtained when the sensor was pushed and moved on various kinds of blank papers successively. Some features are extracted from the response by a principal component analysis and the papers are classified in four clusters.
Keywords :
cantilevers; feature extraction; micromechanical devices; paper; principal component analysis; silicon; strain gauges; surface topography measurement; tactile sensors; transient response; Si; banknote; blank papers; feature extraction; fine roughness measurement; microcantilever; multiaxial tactile sensor; principal component analysis; printed stripe pattern; resistance transient response; standard surface roughness scale; strain gauge film; Electrical resistance measurement; Force; Rough surfaces; Surface resistance; Surface roughness; Tactile sensors; Active touch; MEMS; Principal component analysis; Tactile sensor; Texture identification;
Conference_Titel :
World Haptics Conference (WHC), 2013
Conference_Location :
Daejeon
Print_ISBN :
978-1-4799-0087-9
DOI :
10.1109/WHC.2013.6548398
