The virtual grating was computer generated, so the grating was very fine and the frequency was easily changed.
用软件在计算机上生成虚拟光栅，将两种频率的光栅合成为投影复合光栅进行测量。
So a method of 3d measurement technology based on virtual grating of double frequency was present in the paper.
为解决该问题提出了利用双频虚拟光栅投影的三维测量方法。
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 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。
Moire grating-making instrument is an optical equipment used for making high density space virtual gratings and with sensitivity adjusted freely and no requirement of shockproof.
云纹制栅仪是一种可实现无防震要求、灵敏度随意可调的高密度空间虚栅制作的仪器。
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。
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。
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