鋳物表面粗さ光学的測定法の研究

概要

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The basic technology to measure rapidly the surface roughness of 3-dimensional cast metals using an optical non-contact method has been developed. In the experiment, the standard plates with surface roughness ranging from 100μm to 400μm for the evaluation of cast metal has been used. The standard plate is illuminated obliquely with the incident angle θi(=60°) and detected by CCD camera perpendicularly. An evaluated value F is calculated using the detected image. F is proportional to the surface roughness R_y When the standard plate is illuminated from both side at a right angle to inclined direction, and the plate is inclined with angles ranging from +25° to -25°. The surface roughness R_y. is obtained by F with the error less than ±18% according to the proportional relation-ship between F and R_y.
公益社団法人精密工学会の論文
1998-02-05