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- Title
Assessment of wood surface roughness: comparison of tactile roughness and three-dimensional parameters derived using a robust Gaussian regression filter.
- Authors
Yuko Fujiwara; Yoshihisa Fujii; Yutaka Sawada; Shogo Okumura
- Abstract
Japanese oak and Japanese beech were sanded by hand with abrasive papers of varying grit number. Two three-dimensional parameters selected to characterize their surface roughness ? one parameter for the distribution of roughness-profile peaks and the other for the relative area of the roughness-profile peaks above the threshold height ? were compared against tactile roughness. The parameters were obtained from roughness profiles as determined by a robust Gaussian regression filter (RGRF) using seven cutoffs. The RGRF filtering process was adjusted specifically for the evaluation of wood surface roughness. Except for a cutoff wavelength of 0.25?mm, the RGRF lent itself well to the determination of roughness profiles. No distortion of roughness profiles occurred around deep valleys, and there was a good correlation between the parameters and tactile roughness.
- Subjects
SURFACES (Technology); CERAMICS; SURFACE roughness; FRICTION
- Publication
Journal of Wood Science, 2004, Vol 50, Issue 1, p35
- ISSN
1435-0211
- Publication type
Article
- DOI
10.1007/s10086-003-0529-7