In the field of geometrical metrology, one of the important projects is the accurate measurement and error evaluation of parts profile with complicated and irregular surface.
对具有复杂、不规则轮廓的零件进行精密测量和误差评定，是当前几何量计量领域中的一个重要课题。
In this paper, a general mathematic model of profile error of complex surfaces is proposed with the least squares evaluation.
本文建立了用最小二乘法评定复杂曲面面轮廓度误差的通用数学模型。
Being used in practice, this method is proved to be simple and reasonable and provides a basis for scientific evaluation of profile error of scroll wrap.
经实际应用证实，该方法简便、合理，为科学地评价涡旋型线轮廓度提供了依据。
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