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PARAMETERS SELECTION IN MULTIPOINT FORM MEASUREMENT

机译:多点形式测量中的参数选择

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摘要

In the paper some ways of straightness and roundness measurements with multipoint methods are presented. They are based on workpiece surface measurement in limited number of regularly dislocated points and on reconstruction of an actual profile. For this purpose different interpolation methods can be applied: linear function, polynomial, trigonometric series, third order spline interpolation. The main point when using these methods is to choose a number of measuring points correctly. It depends on character of examined surface, applied interpolation method and acceptable measuring error. These methods can be used for coordination machines with touch trigger probe. Comparison tests were performed using a device for straightness and roundness referenceless measurements.
机译:在本文中,提出了使用多点方法测量直线度和圆度的一些方法。它们基于有限数量的规则错位点的工件表面测量以及实际轮廓的重建。为此,可以应用不同的插值方法:线性函数,多项式,三角函数,三阶样条插值。使用这些方法的重点是正确选择多个测量点。它取决于被测表面的特性,应用的插值方法和可接受的测量误差。这些方法可用于带有触发式测头的协调机。使用用于直线度和圆度无参考测量的设备进行比较测试。

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