Characterizing the surface waviness of steel sheet: reducing the assessment length by robust filtering
Characterizing the surface waviness of steel sheet: reducing the assessment length by robust filtering
复制标题
表征钢板表面波纹度：通过鲁棒过滤减少评估长度
DOI：
10.1016/j.wear.2004.04.006
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
M. Vermeulen
中科院分区：
文献类型：
--
作者：
F. Clarysse;M. Vermeulen
在这项工作中，我们研究了减少测量长度 Lt 以评估钢板波纹度的可能性。比较不同的参数和滤波器技术，了解它们作为 Lt 函数的行为。即使在 Lt 值足够大的情况下，应用标准高斯滤波器也会导致不准确的结果，因为参考中心线的不正确偏差会引入人为波纹。对于较小的 Lt，使用此类滤波器时还存在数据丢失的额外缺点。另一方面，使用鲁棒高斯滤波器获得了有希望的结果。特别是，基于该滤波器的波纹度参数在降低 Lt 时极其稳定。
In this work we investigate the possible reduction of the measuring length Ltfor the assessment of the waviness of steel sheet. Different parameters and filter techniques are compared regarding their behaviour as a function of Lt. Application of a standard Gauss filter leads to inaccurate results, even in case of sufficiently large values of Lt, by the introduction of artificial waviness due to an incorrect deviation of the reference centre line. For smaller Lt, there is the additional disadvantage of the loss of data when using such a filter. On the other hand, promising results obtained with a Robust Gauss filter. In particular, the waviness parameter based on this filter is extremely stable upon reducing Lt.