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| Development and Analysis of Different Fourier Transform Profilometry Method |
| FANG Kun-li1,JIANG Xiao-ying2,GAN Lian-xiang3 |
1.College of Mechanical Engineering, Quzhou College of Technology, Quzhou, Zhejiang 324000, China;
2.College of Mechanical Engineering, Quzhou University, Quzhou, Zhejiang 324000, China;
3. Faculty of Mechanical CNC Quzhou Secondary Technical School, Quzhou, Zhejiang 324000, China |
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Abstract The traditional Fourier transform profilometry (FTP) and two improved Fourier transform profilometry (respectively called the π phase shift method and the gray image method) were analyzed, and the comparative study of this three different methods of measurement range was carried out. Experimental results show that two kinds of improved Fourier transform profilometry measurement range are significantly greater than that of the traditional one. It’s proved that measurement result of the π phase shift method is better than that of the gray image method as the object height gradient increases, measurement result of the π phase shift method is better than that of the gray image method.
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［6］Wenjing Chen, Xianyu Su, et al. Method for eliminating zero spectrum in Fourier transform profilometry ［J］.Optics and Lasers in Engineering, 2005, 43(11):1267-1276.
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［8］Xianyu Su, Wenjing Chen. Fourier transform profilometry: a review ［J］.Optics and Lasers in Engineering,2001, 39(5):263-284. |
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2013, Vol. 34 
