Application of harmonic analysis method based on two-dimensional Fourier transform to flatness error sampling

被引：0
|
作者：
Wang, Yu [1 ]
Li, Xingwang [1 ]
Ma, Dongdong [1 ]
Huang, Fugui [2 ]
机构：
[1] Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China
[2] Huaqiao Univ, Grad Sch, Xiamen 361021, Peoples R China
来源：
NINTH INTERNATIONAL SYMPOSIUM ON PRECISION ENGINEERING MEASUREMENTS AND INSTRUMENTATION | 2015年 / 9446卷
关键词：
flatness error; sampling; Two-Dimensional Fast Fourier Transform; harmonic characteristics; SELECTION; POINTS;
D O I：
10.1117/12.2084029
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The flatness errors of several different parts were sampled from a Coordinate Measuring Machine and then the harmonic characteristics of flatness errors were analyzed by observing the three-dimensional frequency spectrum obtained by calculating the data through Two-Dimensional Fast Fourier Transform. It was found through experiment and analysis that each harmonic component of a flatness error is generally similar if the processing system is reliable, i.e. the highest harmonic wavelength of a random error is infinite, and Nyquist Sampling Theorem can not be applied to directly verify flatness error sampling points.
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页数：6
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