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Calculation of the associated feature for barrel- and saddle-shaped cylindrical elements

机译:计算桶形和鞍形圆柱元素的相关特征

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Accurate measurement of irregularities of the geometrical surface structure requires mathematical definition of relevant reference surface, which is called, according to the newest terminology, an associated surface. The surface is the reference feature in relation to which appropriate surface parameters are calculated. Frequently, the least squares or minimum zone cylinders have been used as associated features in measurements of cylindricity. The associated feature which is an ideal cylinder is not suitable for measuring elements that are not nominally cylindrical but for example barrel- or saddle-shaped. The paper describes the problem of calculation of the associated feature for barrel- or saddle-shaped surfaces.
机译:准确测量几何表面结构的不规则性需要相关参考表面的数学定义,根据最新术语,该参考表面被称为关联表面。该表面是参考特征,可以根据该参考特征计算适当的表面参数。通常,最小二乘方或最小区域圆柱体已用作圆柱度测量中的关联特征。理想圆柱体的相关特征不适用于标称不是圆柱形但例如桶形或鞍形的测量元件。本文描述了桶形或鞍形表面的相关特征的计算问题。

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