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。
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.
提出通过对龙基光栅的塔尔博特效应所产生的莫尔条纹角度的计量来测量长焦距的方法。
A new method for long focal length measurement is presented, which is accomplished by obtaining the Angle of moire stripe formed by Talbot effect of Ronchi grating.
本实验是利用两块空间频率相同的黑白光栅产生的莫尔条纹来测量长焦距透镜的焦距。
In this experiment, we use two gratings with the same frequency to generate Moire fringes and use them to measure the long focus length of lens.
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。
The angular displacement of reflecting surface is measured in accordance with the direction change of Moire fringes caused by the inclination of grating. self-imaging plane.
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 is a method to manipulate the static interferogram with carrier fringes.
指出了非对称双级闪耀光栅实现莫尔条纹倍增理论的实质，并简化了实现高倍数光学细分的手段。
The fundamentality of fringe multiplication in DMNG is pointed out. and the means to realize optical subdivision with high multiple is simplified.
在超精密测量领域中，通过处理同心圆光栅副迭合的莫尔条纹图像可以分离出二自由度的微小误差信息。
In the field of ultra-precision measurement, tiny two-degree-of-freedom error information can be separated from moire fringe image generated by overlapping a pair of concentric-circle gratings.
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.
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。
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.
光学系统采用白光灯加准直镜，以平行光照射光栅面，通过光栅副产生莫尔条纹。
The optical system uses the fluorescent lamp with the collimation mirror, incident the grating surface by the parallel light, in order to produce the moiréfringe through the grating.
为了提高用莫尔条纹法测量扭转角的测量精度，分析了光栅周期不一致对扭转角测量误差的影响。
With the aim to improve the measuring precision of a roll angle based on Moiré fringe method, the influence of inconsistent periods of two gratings on the measurement precision is analyzed.
莫尔条纹；相位差滤波； 指示光栅；高次谐波；
Moiré fringe; phase-difference filtering; scanning reticle; high harmonic generation;
具体分析了以矩形光栅为例的周期性目标莫尔条纹式的混淆效应，以及非周期性目标噪声形式的混淆效应。
Moire effect as an aliasing phenomenon of periodic objects and aliasing contents as signal dependent noise of non-periodic objects are analysed.
在实施莫尔条纹细分中，两路信号的相位误差将影响计量光栅的测量位移时的精度。
In morie strip division, the phase error between two signals will affect the measurement precision.
在阐述叠加莫尔方法测量物体三维形貌基本原理的基础上，导出正弦光栅照射法等高莫尔条纹检测的数学模型。
On the base of expatiating the theory of object 3-d topography measurement with the overlapping moir? Approach, this paper derives the mathematic model for obtaining the contouring moir? Fringe.
在阐述叠加莫尔方法测量物体三维形貌基本原理的基础上，导出正弦光栅照射法等高莫尔条纹检测的数学模型。
On the base of expatiating the theory of object 3-d topography measurement with the overlapping moir? Approach, this paper derives the mathematic model for obtaining the contouring moir? Fringe.
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