不连续平面的平面度误差评定方法研究

doi:10.3969/j.issn.1000-1158.2022.01.03

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Abstract A method for evaluating discontinuous planes based on inclusive lines is proposed. Firstly, the global noise of point cloud data is eliminated based on principal component analysis. Then, the least square plane fitting method, the multi-threshold point cloud extraction algorithm and the parallel line fitting method were used to obtain the qualified inclusive lines, and two parallel inclusive lines in the space were used to replace the inclusive plane to establish the minimum region. Finally, the flatness error evaluation of discontinuous plane is realized and the plane adjustment is guided. The experimental results show that the flatness error of the proposed method is 0.011mm lower than that of the genetic algorithm compared with the traditional feature point method, and the flatness error is reduced by 1.959mm after adjusting the plane according to the output deviation information. It can effectively evaluate the flatness error of discontinuous plane and guide the plane adjustment.

Key words： metrology;flatness error;discontinuous plane;inclusive straight line;error evalution offset

Received: 16 September 2020 Published: 06 January 2022

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TB921

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	Articles by authors
	LOU Jian-qi
	LI Wei
	FU Yan-hua
	LIN Hong-yun

Cite this article:

LOU Jian-qi,LI Wei,FU Yan-hua, et al. Study on Flatness Error Evaluation Method of Discontinuous Plane[J]. Acta Metrologica Sinica, 2022, 43(1): 14-20.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.01.03 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I1/14

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