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介绍一种阴影莫尔条纹偏折术。利用光栅自成象面的倾斜引起莫尔条纹方向变化来测量反射表面的角位移。
Describe a shadow moiré deflection. The angular displacement of the reflective surface is measured using the grating’s change in moire fringe from the tilt of the imaging surface.