|
|||||
|
|
| 探测器非线性对傅立叶变换轮廓术的影响 | |
| 引用本文： | 乔闹生 苏显渝 陈桂川. 探测器非线性对傅立叶变换轮廓术的影响[J]. 激光杂志, 2004, 25(5): 35-37 |
| 作者姓名： | 乔闹生 苏显渝 陈桂川 |
| 作者单位： | 四川大学电子信息学院光电系,四川,成都,610064;四川大学电子信息学院光电系,四川,成都,610064;四川大学电子信息学院光电系,四川,成都,610064 |
| 摘 要： | 本文分析了探测器存在二阶、三阶非线性对傅立叶变换轮廓术的影响 ,对抽样频率的确定给出了严格的理论分析和公式推导。分析表明 :由于非线性的影响 ,必须增大抽样频率才可避免频谱混叠 ,保证傅立叶变换轮廓术的测量精度。计算机模拟实验给出了不同抽样频率对三维重建的影响 ,实验结果证实了理论分析的正确性 |
| 关 键 词： | 探测器的非线性 抽样 傅立叶变换轮廓术 |
| 文章编号： | 0253-2743(2004)05-0035-03 |
| 修稿时间： | 2004-03-01 |
Effect caused by nonlinearity of detector in Fourier transform profilometry |
|
| QIAO Nao-sheng,SU Xian-yu,CHEN Gui-chuan. Effect caused by nonlinearity of detector in Fourier transform profilometry[J]. Laser Journal, 2004, 25(5): 35-37 | |
| Authors: | QIAO Nao-sheng SU Xian-yu CHEN Gui-chuan |
| Abstract: | In this paper,We discuss the effect of nonlinearity in detector on Fourier transform profilometry,give the severe analyse of theory and deduction of formulate to decide the sampling frequency.Analysis indicates:due to the effect of nonlinearity,sampling frequency must be increased to avoid overlapping spectrum and ensure the precision of measurement.The effect of 3-D reconstruction by different sampling frequency is given by computer simulation experiment,the result of experiment verifies the correctness of the theory analysis. |
| Keywords: | nonlinearity of detector Sampling Fourier transform profilometry |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |