三坐标测量机, 动态有效作用直径, 误差修正, 测头

Based on the influence mechanism analysis of a CMM dynamic effective diameter, the addition model and the multiplication model were built herein. During the analysis, the addition model, considering the interactive effect of independent variables, proves to be most effective in reflecting the positioning velocity, approach distance and probing velocity effect on the dynamic effective diameter. The model shows that the higher the positioning velocity, the smaller the dynamic effective diameter; the more probing velocity deviates from its best value, the bigger the dynamic effective diameter; the farther the approach distance, the smaller the dynamic effective diameter.