本文论述了电动轮廊仪测高精表面粗糙度的测量误差,并对其总测量误差作了有代表性的合成计算。同时,对目前不同等级的高精表面,用不同类型的仪器对代表性样件进行实际测量,对其量值加以统计拟合分析,按▽12b～▽13c每小级给出参考性的量值修正表,可供实际工作参考应用。 This article discusses the measuring error of the measuring surface roughness of the electric wheel porch and makes a representative synthetic calculation of the total measuring error. At the same time, on the current different grades of high-precision surface, using different types of instruments for the actual measurement of representative samples, and its statistical analysis of the magnitude of the statistics, according to ▽ 12b ~ ▽ 13c each level gives a reference amount Value correction table, for practical reference applications.