理论分析表明，在谱平面，各衍射级的谱的相对分布是相同的。
The analysis shows that the relative amplitude spatial distributings of different diffraction orders are same.
光栅制作时引入的综合噪音对输出质量的影响及各衍射级能量的不均衡问题尚待进一步改进。
What remain to be improved are the effect of the general noise in grating-making on the output quality and the imbalance of diffraction order intensity.
理论分析表明，在谱平面，各衍射级的谱的相对分布是相同的。并通过联合变换实验加以证实。
The analysis shows that the relative amplitude spatial distributings of different diffraction orders are same. This has been checked by the experiment of JTC.
这种方法可通过选择不同的光栅常数或衍射级来改变测量的灵敏度，可测量抛光的表面，也可测量粗糙的表面。
In this method, the measuring sensitivity can be varied by selecting different grating constam or diffraction order. This method can be applied to polished surfaces and rough surfaces as well.
本文提出了衍射或荧光分析用的X射线管原级X射线谱强度分布的定量测定方法。
In this paper, a method for quantitative determination of spectral distributions of primary radiation from X-ray tubes for diffraction and X-ray fluorescent spectral analysis is presented.
本文对矩形光栅编码图片的衍射零级与其它各级单独所成的象，其衬度能够反转的现象，提出了新的理论分析。
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given.
由于对该全息图直接计算得到的重构像，受零级衍射光斑和散斑噪声的影响较大，使得重构像质量难以令人满意。
The quality of the reconstructed image directly calculated from the recorded hologram is unsatisfactory because of the presence of the zero-order diffraction and the speckle noise.
联合变换相关器的零级衍射光斑会影响相关峰探测。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
本文运用希尔伯特变换空间调制器使十字光栅一级衍射谱的强度分布用于精密定位。
Using a Hilbert transform Modulator, the intensity distribution of first-order spectrum of crossed-slit is used for accuracy positioning in practice.
除超晶格的主衍射峰外，还观察到一级和二级卫星峰。
The first and second order satellite peaks around the main reflection appear in the superlattice rocking curve.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
对于频率为几十赫兹的液体表面波，实验上观察到稳定、清晰、反衬度非常高的衍射图样，并发现了零级缺级现象。
Highly visible stationary laser diffraction patterns from liquid surface waves at a few tens Hertz were obtained experimentally, and the disappearance of zero order diffraction spot was also observed.
对于频率为几十赫兹的液体表面波，实验上观察到稳定、清晰、反衬度非常高的衍射图样，并发现了零级缺级现象。
Highly visible stationary laser diffraction patterns from liquid surface waves at a few tens Hertz were obtained experimentally, and the disappearance of zero order diffraction spot was also observed.
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