零光程差位置 zero optical path difference
The location of the zero optical path difference is one of the key factors in scanning white-light interferometry. The measuring principle of scanning white-light interferometry is introduced.
干涉条纹零光程差位置的确定是扫描白光干涉测量的关键技术之一。
参考来源 - 扫描白光干涉测量技术的算法比较·2,447,543篇论文数据，部分数据来源于NoteExpress
采用重心法确定干涉条纹调制度的最大值位置，并以此作为零光程差位置。
The centrobaric method was used to determine the position with the maximum modulation value of fringes and the position was used as the point of zero light path difference.
实验表明，采用该方法对光纤准白光干涉信号零光程差位置的定位精度优于0.5个干涉条纹。
The experiments show that the positioning accuracy of extrapolation method for zero optical path difference point of fiber quasi-white interference signal is less than 0.5 interference fringes.
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