Research and implementation of roughness data processing based on GPS profile method
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摘要: 根据GPS规范，对轮廓法粗糙度数据处理提出了切实可行的方案并通过编程实现算法：利用最小二乘拟合法消除测量数据中的标称形状；将高斯滤波器输出函数离散化，实现数字滤波器，并利用该滤波器滤除噪声，将原始轮廓、粗糙度轮廓和波纹度轮廓进行分离。Abstract: According to the GPS specification, a feasible solution for roughness data processing of profile method is proposed and the algorithm is realized by programming through the following steps: the nominal form in the measured data is eliminated by the best fitting least squares method; the Gaussian filter output function is discretized to realize the digital filter, and this Gaussian filter is used to filter out the noise, and the primary profile, roughness profile and waviness profile are derived by filtering.
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Key words:
- GPS /
- roughness /
- profile method /
- nominal form /
- least squares /
- filter
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表 1 各截止波长与测头半径、采样间隔之间的关系
$ {\lambda }_{c} $/
mm$ {\lambda }_{s} $/
μm$ {\lambda }_{c}/{\lambda }_{s} $ 测头半径/
μm最大采样
间隔/ μm0.08 2.5 30 2 0.5 0.25 2.5 100 2 0.5 0.8 2.5 300 2 0.5 2.5 8 300 5 1.5 8 25 300 10 5 
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[1] 陈景玉, 明翠新, 李海斌. 产品几何技术规范(GPS)领域国内外标准比对分析[J]. 机械工业标准化与质量, 2011(3): 16-20. doi: 10.3969/j.issn.1007-6905.2011.03.003 [2] 《计量测试技术手册》编辑委员会. 计量测试技术手册 [M]. 北京: 中国计量出版社, 1997. [3] 赵永彪, 苗雅丽. 表面粗糙度的测量分析[J]. 制造业自动化, 2011, 33(3): 6-8. doi: 10.3969/j.issn.1009-0134.2011.3b.03 [4] ISO 3274: 1998. Geometric Product Specifications(GPS)- Surface texture. Profile method - Nominal characteristics of contact(stylus) instruments [S]. British Standards Institution. [5] ISO 4287: 1997. GPS-Surfacetexture. Profile method Terms, definitions and surface texture parameter [S]. British Standards Institution. [6] ISO 11562: 1997Geometric Product Specifications(GPS)- Surface texture. Profile method- Metrological characteristics of phase correct filters [S]. British Standards Institution. [7] 高品贤. 测试信号分析处理方法与程序[M]. 成都: 西南交通大学出版社, 1999. [8] 胡汝豪. 轮廓仪信号滤波调理与数字技术研究[D]. 哈尔滨: 哈尔滨工业大学, 2010. -
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