The experiments show that the positioning accuracy of extrapolation method for zero optical pathdifference point of fiber quasi-white interference signal is less than 0.5 interference fringes.
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。
2
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 pathdifference.