本文用位相物体偏振编码的观点,阐述了位相的偏振测量和干涉条纹的偏振扫描原理。文中指出了两类线偏振编码器的结构,提出了偏振条纹扫描小孔干涉仪,并详细分析了其原理、扫描误差及其修正。所提出的方法都得到实验的证实。

Polarization encoding of phase object may convert phase measurements to polarization measurements and realize polarization fringe scanning. Two kinds of linear polarization encoders are pointed out. Polarization fringe scanning point diffraction interferometer is proposed. With the technique the disadvantages of point diffraction interferometer may be avoided. The analyses of the scanning error and ita correction are also given. Preliminary experiments confirmed the technique.