
[物] 条纹图形,干涉图样
The numerical display of the computer can yield better fringe pattern and measurement results.
计算机的数字显示可产生较好的条纹图样和测量结果。
As with all interferometric methods, optical path length changes of the light waves are observed through interferometric fringe pattern analysis.
像所有的干涉方法一样,光波光程长度的变化通过干涉仪的条纹图样来分析。
The noise sources and model in speckle photography fringe pattern is discussed and a noise filter for this model is designed.
本文讨论了散斑摄影条纹图的噪声来源及模型,设计合适的数字滤波器。
ATOS flowing optical scanner with the fringe pattern theory is a kind of advanced and non-contacted of equipment in reverse engineering.
Atos流动式光学扫描仪基于光栅原理,是逆向工程领域中一种先进的非接触式光学扫描设备。
Phase-unwrapping is an unavoidable steps in optical measurement based on fringe pattern analysis.
位相展开问题是所有基于条纹分析的光学测量技术都难以避免的问题。
When Fourier transform is used to demodulate the modulated fringe pattern, the phase of deformation is calculated and furthermore the deformation is measured accurately.
利用傅里叶变换法,解调出了变形场的相位,从而实现了物体变形场的精确测量。
A high quality of whole field speckle fringe pattern can be obtained and the point-by-point filtering method can also be used to analyse the deformation more accurately.
应用该技术可获得优质的全场散斑条纹图,并可用逐点滤波法进行精确定量分析。
In addition, several calculating formulas and experimental methods to determine the slope, the absolute fringe order and the fractional fringe order of the moire fringe pattern are given.
提出了斜率、云纹绝对级数及非整数级云纹补偿的计算公式和实验方法。
The arithmetic includes image preprocess(i. e. noise extraction of image), gray image binarization and fringe pattern sharpening.
算法包括图像的预处理(即图像的噪声提取)、图像的二值化及图像的细化。
Theoretical analysis on optimum aperture functions, which could improve effects of filtering and the quality of fringe pattern is also made.
对最佳拍摄孔径的设计作了探讨,认为采用适当分离的孔径可以研善波效果,提高条纹的质量。
The fringe pattern generated by our method is of high contrast and has better quality than subtraction fringe. The new method is ****** and does not require more computational effort.
由我们方法获得的条纹图比减条纹有更高的对比度和更好的质量,新方法是简单的,不需要复杂的计算。
In this work, an algorithm based on multichannel filters for speckle fringe pattern normalization is presented.
本文提出一种基于多通道滤波技术的散斑条纹图正则化方法。
Besides, to the limited holographic interference fringe pattern which adds man-made phase changes, we can achieve a good quantitative data processing.
其次,对人为加入相位变化的有限全息干涉条纹图来说,可以很好地实现定量化数据处理;
The phase unwrapping process of fringe pattern can be achieved without any priori information or manual intervention.
该方法更充分利用条纹图像信息,算法稳健,可以实现完全自动的二维位相展开。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理,实现了散射物体的三维曲面测量。
We test the new method on the computer-simulated fringe pattern and experimentally obtain the fringe pattern, and evaluate its filtering performance.
分别对计算机模拟的和实验获得的条纹图进行了测试,并对滤波方法的性能进行了评价。
Some experimental results of the deformed fringe pattern, which is observed on certain system parameters condition, are presented. The results show some special …
本文还给出了在一定系统参数条件下,几种特殊三维面形对空间结构光场调制的实验结果。
There are two distinct methods in optical fiber sensor system for the observation of such fringe pattern and these can be identified as spectral domain processing, and phase domain processing.
这里研究用两种不同的方法在光纤传感器系统来观察这样的条纹图样,即光谱域处理方法和相位域处理方法。
Each man took turns slowly pushing the stone, while continuously observing the fringe pattern.
每人轮流缓慢地推动石头座使其旋转,同时连续地观察条纹图样。
This method has the characteristics that in addition to the sensing interferometer, a second processing interferometer is necessary to extract the required fringe pattern information.
该技术的特点是除了使用传感干涉仪以外,还必须用第二个处理干涉仪来提取所需的条纹图样信息。
In this paper, a method is derived of photoelastic isochromatic fringe pattern for determination of mixed-mode stress-intensity factors.
本文导出一种用光弹性等色条纹图确定混合型应力强度因子的方法。
Dynamic fringe pattern can be observed throughout the testing by real-time holographic interferometry, while the traditional method is only suitable for static fringe pattern in phase extracting.
实时全息干涉法可以观察记录整个测试过程中条纹图的动态变化,传统相位提取算法只适合于静态干涉条纹图相位的提取。
There are noticeable errors at the border of the pattern when the traditional Fourier transform method (FTM) is used to evaluate the carrier fringe pattern.
针对传统傅里叶变换法处理光载波干涉条纹图时会有边缘效应产生的问题。
The fringe pattern of differential Isodyne in various characteristic directions and planes can be real-timely taken, by using this system.
该系统可实时拍摄各种特征方向和特征平面的微分等达因条纹图。
The noise of the blasting fringe pattern is reduced and quality is increased after processing by gradation modification, filtering and smoothness.
爆炸条纹图经灰度修正、滤波、平滑后,噪声有所减少,图像质量增强。
"Fringe pattern"(干涉条纹图样)是光学和工程测量领域中的专业术语,指由光的干涉或衍射产生的明暗交替的周期性条纹结构。这类图样广泛应用于精密测量、材料形变分析和光学检测中。
当两束相干光波相遇时,会因相位差产生叠加增强或抵消的现象,形成稳定的明暗条纹。其数学表达式为: $$ Delta = 2dcostheta $$ 其中Δ为光程差,d为介质厚度,θ为入射角。当Δ满足特定波长整数倍时出现明纹,半整数倍时呈现暗纹。
NASA在航天器热防护层检测中采用电子散斑干涉技术,通过分析受热形变产生的条纹图样,精确识别材料结构的微小裂纹(NASA技术报告NTRS-2020-03215)。
权威参考文献:
“Fringe pattern”是由“fringe”和“pattern”组合而成的专业术语,其含义需结合两部分理解:
1. 单词分解
2. 组合含义 “Fringe pattern”专指由光干涉、衍射或其他波动现象产生的条纹状图形,常见于光学测量和分析领域。例如:
3. 应用领域
如需更深入的物理原理(如条纹间距公式),可参考光学干涉相关文献。
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