Changing the phase of digital grating can realize Moire fringe scanning. The global center of beam pattern can be calculated by multi_frame scanning images.
改变该数字光栅的相位，可实现莫尔条纹扫描，用多幅扫描图像可算出光斑图像整体中心。
The virtual grating phase shifting moire fringe is a method to manipulate the static interferogram with carrier fringes.
虚光栅移相莫尔条纹法是一种对静态干涉图的处理方法。
The virtual grating phase shifting moire fringe method is studied to measure the parameters of gauge block which combines the techniques on grating, moire, and phase shifting interferometry.
研究了集光栅技术、莫尔技术、相移干涉术为一体的虚光栅移相莫尔条纹法测量量块的原理及关键技术。
Based on the lateral Moire fringe of the gratings, the change of Moire fringe was researched by using Fourier spectrum while the frequency of a grating was changed.
用傅里叶频谱分析方法研究了横向莫尔条纹中一个光栅倍频时莫尔条纹的变化。
The feasibility of the virtual grating phase-shifting moire fringe method is achieved by comparing the results with those of ZYGO's.
对实际干涉图进行了处理，并与ZYGO的测试结果进行比对，结果吻合，从而证实了这种方法的可行性。
The feasibility of the virtual grating phase-shifting moire fringe method is achieved by comparing the results with those of ZYGO's.
对实际干涉图进行了处理，并与ZYGO的测试结果进行比对，结果吻合，从而证实了这种方法的可行性。
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