木材の粗さと触感について

抄録

Roughness of planed surfaces of ten different kinds of wood is measured with Yamamoto contact pin type surface tester. From cumulative distribution curves obtained by calculation, these surfaces are made into three groups. Perception of roughness by touch heightens in proportion to the average height of roughness whereas these three groups do not follow this rule of linearity. Size and pitch of openings of large vessels are inferred to be attributed to this deviation.
For idealization of planed wood surface, glass plates are used on which parallel streaks of various widths and pitches are etched with hydrogen fluoride. These plates may serve as standards of surface roughness of planed wood, for the perceived roughness of the two is the same.