实时偏振相移干涉技术及其应用

Shearing Interferometry with Real-Time Polarization Phase-Shifting Technique

提出一种实时偏振相移干涉技术，该方法具有光路简单，不需防震、可明室操作、易于实现相移、便于计算机自动分析条纹，从而实现实时高精度自动化测量等优点。文中对该方法给出了严格的理论推导和实验验证。

ased on the principle of projected grating, a new real-time polarization phaseshift shearing interferometry is proposed and discussed. The method can be used for measuring shapes of 3-D diffuse objects and displacement of large deformation automatically. Some experiments were demonstrated to verify the validaty of the present technique.