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The aim of this paper is to find the evaluate method for straightness error conforms to the smallest condition. First, the algorithm model and the realization method of evaluating straightness error in two spot, least squares method and the minimum envelope zone method have been introduced in detail. The experiment data of eight different kinds of straights have been done on CMM. Then the measured...
First of all, this paper points out that the significance of studying the Linear measurement of sample's interval, and then applying different sampling programs on the same plane for collecting, and separately by the least square method, the smallest tolerance zones flatness error evaluation. The result indicated along with the sampling interval increasing or the sampling points reduction, the flatness...
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