Based on the polarization phase shift and correlation analysis, a high resolution and convenient interference fringe principle is proposed The signal processing part of the subline moves forward, which is realized through the analysis and processing of the distribution of the interference fringe intensity distribution, which is through high resolution The polarization phase shift operation, phase control of the interference phase, the distribution of interference fringes is distributed back to the initial state of the displacement, and corresponding to the phase control quantity The optical path of the displacement is the lambda /2 fractional part of the displacement. Because the polarization phase is applied to the hardware mechanical movement with the maximum magnification, it can be obtained Reliable high resolution segmentation. Theoretical analysis and simulation results show that the principle of interference stripe segmentation can easily reach the nanometer resolution - err

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......\基于偏振相移的干涉条纹细分原理.caj

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