介绍了深度误差允差的计算方法及计算结果。
The calculation method and results of the tolerance of error in depth for diffraction pattern are shown.
研究x射线反射式波带片衍射图形制造过程中的深度误差效应。
Error effect in depth of diffraction pattern of X ray reflection zone plate has been studied.
刷新率的变化和黑栅衍射效应将导致衍射效率下降,使得曝光深度误差增加。
The variation of refresh rate and diffraction by opaque lattice will lead to reducing diffraction efficiency and this will increase exposure depth error.
基于衍射光学原理,获得了微透镜的衍射效率与蚀刻深度误差之间的关系式。
Based on the diffraction optical principle, a formula of the diffraction efficiency and etching depth error of the microlens is obtained.
试验结果表明,采用水平基准面两步法静校正,时间剖面反演深度误差最小;
The results were as follows. The horizontal datum and two-pass statics method gave minimum depth error on time section.
深度偏移剖面中的深度误差与速度误差并不相等,有时可以达到速度误差的两倍。
Depth error in depth migration isn't equal to velocity error, sometimes it is twice as many.
深度偏移剖面中的深度误差与速度误差并不相等,有时可以达到速度误差的两倍。
Depth error in depth migration profile isn't equal to velocity error, sometimes it is twice as many as velocity error.
反演的界面起伏形态可与已知井的测深资料相对比,平均深度误差为10%,最小的深度误差仅有2%。
The undulation shape of inversion interface can be correlated to that of sounding data at known borehole, the average depth error being 10%, and the minimum depth error being 2% only.
讨论了深度误差和宽度误差对衍射微透镜的影响,发现相对误差不大时制作误差对衍射微透镜的影响不大。
The effects of depth error and width error on diffractive microlenses are discussed. I find that there are little influences on diffractive microlenses when the relative fabrication error is small.
计算结果表明深度误差和塌边误差对光束近场调制有很大影响,对位误差相对影响较小,而相互影响更加严重。
The results show that the stair depth error and stair slope error can cause great modulations in the near field of CSG, but the dignment error has little effect on the modulations.
根据色分离光栅的实际制作过程建立了包含对位误差、占空比误差、刻蚀深度误差、塌边误差等多种制作误差的色分离光栅加工误差模型。
According to the practical fabrication process of CSG, a comprehensive fabrication error model of CSG including alignment error, duty cycle error, depth error and stair slope error is built up.
分析了引起光谱分析误差的主要因素,如试样脱碳层深度、表面粗糙度、描迹等。
It analyzed main factors of arising spectrum analysis error which including specimen decarburization layer depth, surface roughness, describing, etc.
然而,因此磨损测量的深度可能潜在的包含了最初的误差。
Thus, the wear depth estimation could potentially include the initial nonsphericity.
对比指出两种模型计算出的冰帽各深度冰龄最大误差不大于2%。
The maximum error between two model calculation is no more than 2% at each depth of the ice cap.
分析了平衡时间、测量误差和探测深度的关系。
The balance time and measurement errors in relation to the depth of detection are analysed.
螺柱提起高度、送下深度、提起和送下速度等焊接参数的设定由程序控制,减少了人工调整的随机误差;
The setting of welding parameters, involving stud lifting height, stud sending depth, lifting and sending speed and so on, can be accomplished by program control, thus the artificial error is reduced.
在叠前共深度点道集内各地震道的动、静校正误差很小的情况下,地震资料时间域水平叠加方法有较好的叠加结果。
The conventional stack method of seismic data gives quite good results when the errors of time corrections are small enough or the arrivals are near the same.
针对以往钻井地质设计中采用构造图结合实钻资料法进行剖面深度设计误差较大的不足,该文提出了一种新方法。
The paper presents a new way which can reduce the deficiency ot depth section design that is according to the structure diagram and real-time drilling data.
详细分析了旋转视差法深度定位中的误差来源,并提出校正的方法。本文技术可以达到很高的定位精度。
Than the source of error in depth locating is analyzed in detail and the solution is provided. The high location precision can be obtained using these techniques.
但当断层的深度加大或断层延伸范围变小时,实际的模型与二度体模型的假设差别较大,致使反演结果误差较大,难以适应实际问题的需要。
But if the depth and extension of the fault increase, the inversion results will have a bigger error because the 2d model is not fit for the real fault.
但实践证明,仍存在着许多明显的技术缺陷,如测值偏低,误差随取样深度增大而增加等。
But the practices showed that there were many obvious technical problems, such as the measured value too lower, the error increased with the depth of sampling and others.
研究结果初步表明该方法定位精度比较高,无论在残差、测定误差、震中分布还是震源深度方面,都比原来定位结果有较大改进。
The research result shows the location accuracy by the method is better and improves more than original location result in residual error, evaluated error, epicenter distribution and focal depth.
该算法构造曲面的有向深度图像,将问题由3维转化到2维,通过图像的比较来获得曲面的匹配误差。
By constructing the oriented depth images for each surface, a problem in 3d is transformed into a 2d problem.
通过分析系统参数与深度信息的误差关系,确定了系统集成应遵守的约束条件,集成了最优系统结构。
By analyzing the system parameters and depth information errors, system integration constraint condition was observed, and the optimal system figuration was established.
介绍了石油测井深度光电编码器测量系统的测量原理、系统组成以及电路分析,同时在对系统误差分析的基础上给出了具体校正方法。
The principle of depth survey system by photoelectric encoder for oil well logging, the systems composition and its specific hardware circuit are introduced.
采用的静态精度评估方法就是在多波测深系统静止的条件下考核其对同一位置测量深度的误差;
The static precision evaluation method is to measure the error at the same depth under the static condition of the system;
结果表明,该类试验的误差在不同深度土层间和时段间存在相关性和异质性,其相关性随着土层间距和时段间距减小而增大。
The results show that the correlations between the trial errors are depended on different soil layers and time periods. The correlations are increased with narrow spatial and temporal distances.
试验在模型地基中的影响深度是有限的,应在此范围(最大影响深度)内考虑模型中应力与原型中应力的误差问题。
The influence depth of model foundation is limited. So the error between stresses of prototypes and models should be considered in this range (the maximum influence depth).
文中还分析了超导屏蔽的绝缘缝隙引起的误差,提出了利用有深度的超导狭缝的“磁阻衰减效应”来改善屏蔽效果的概念。
The error due to the existence of necessary insulating gap of the superconducting screen was also estimated. It has been pointed out that a gap with finite depth will pr…
文中还分析了超导屏蔽的绝缘缝隙引起的误差,提出了利用有深度的超导狭缝的“磁阻衰减效应”来改善屏蔽效果的概念。
The error due to the existence of necessary insulating gap of the superconducting screen was also estimated. It has been pointed out that a gap with finite depth will pr…
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