摘要
对利用线阵CCD测量干涉条纹中 ,由于CCD本身的分离性和象元的积分效应 ,以及干涉条纹 (余弦信号 )抽样的特殊性 ,深入讨论了“如何确定可测量条纹最大空间频率”、“象元积分效应对抽样的影响”和“象元相位匹配对条纹对比度的影响”等 3个问题 ,结果对于利用线阵CCD测量干涉条纹具有一般性的指导意义。
In the measurement of interference fringe using the linear CCD, considering the separation of CCD, the integral effect of the pixel,and the sampling speciality of the interference fringe (cosine signal), three problems have been discussed seriously--″how to determine the advisable maximum of the spatial frequency of the fringe″, ″the effect on the sampling of the integral effect of the pixel″, and ″the effect on the contrast ratio of the fringe of the phase matching of the pixel″.
出处
《计算机测量与控制》
CSCD
2002年第6期371-372,共2页
Computer Measurement &Control
