圆分度误差的检验及评定问题探讨

• 作 者: 胡国玙 魏凤岭
• 机 构: 中国计量科学研究院长度室,中国计量科学研究院长度室,
• 出 处: 计量技术
• 发表日期: 1981年10期
• 关键词: 误差带 分度精度 刻线 误差值 算术平均值 度盘 最大误差 中误差 误差评定 理论分析

在高精度圆分度检验中,为了消除待检物安装偏心等原因对检验结果的影响,常采用同一直径两端的刻线误差的算术平均值,即所谓直径误差来表达分度精度。按理,半周内的直径误差值就表达了整周内各待检点的圆分度误差。但实践证明,对同一直径上两周半分别检验所求得的直径误差并不相同,其差值往往超

In the high-precision circle indexing test, in order to eliminate the influence of test object installation eccentricity and other factors on the test results, the arithmetic mean of the line marking error at both ends of the same diameter, so-called diameter error, is often used to express the indexing accuracy. Logically, the diameter error within half a week to express the points to be checked throughout the week indexing error. However, practice has proved that the diameter of the same diameter on the two weeks and half of the test obtained by the error is not the same, the difference is often super