表面粗さ測定に關する統計的研究(第4報)

最大高さと標準偏差

抄録

In order to express the surface roughness of the known characteristic, it is quite advisable to use the maximum range-peak-to-valley height. According to JIS, the uncommon peak or valley, which appears only once or twice among the standard length must be eliminated in measuring "peak-to-valley height." But the statistical survey shows how these directions throw research workers into confusion.
By measuring the real "peak-to-valley height" of several samples, . the estimates of surface roughness are obtained.
After the characteristic of surface roughness is determined, standard deviation of the surface roughness can be estimated through "peak-to-valley height, " because there exists the significant correlation between them.
In measuring surface smocithness, the object of the measurement must be made clear. Sample size should be decided to fill the purpose of the experiment. The meaning of the "peak-to-valley height" is treated here.