Quantitative Comparison of Cylindricity Profiles Measured with Different Methods Using Legendre-Fourier Coefficients

Metrology and Measurement Systems

Stanisław Adamczak¹  Dariusz Janecki¹  Włodzimierz Makieła¹  Krzysztof Stępień¹ 

关键词: cylindricity;    form deviation;    measurement;    Legendre polynomials;    Fourier series;   

DOI  :  10.2478/v10178-010-033-5

来源: Versita

【 摘 要 】

The paper discusses a method of quantitative comparison of cylindricity profiles measured with different strategies. The method is based on applying so-called Legendre-Fourier coefficients. The comparison is carried out by computing the correlation coefficient between the profiles. It is conducted by applying a normalized cross-correlation function and it requires approximation of cylindrical surfaces using the Legendre-Fourier method. As the example two sets of measurement data are employed: the first from the CMM and the second one from the traditional radial measuring instrument. The measuring data are compared by analyzing the values of selected cylindricity parameters and calculating the coefficient of correlation between profiles.

【 授权许可】

Unknown