speckle pattern
散斑图;斑纹图样
2026-03-22 10:51 浏览次数 21
散斑图;斑纹图样
speckle method pattern measurementz equipment斑点图形量测设备
speckle interference pattern散斑干涉条纹
electronic speckle pattern interferometryESPI fringes - flat plate rotated about a vertical axis - the fringes represents displacement in the viewing direction; the difference in displacement between fringes is about 0.3μm.
electronic shearing speckle-pattern电子错位散斑
Speckle Method Pattern斑点图形量测设备
speckle fringe pattern散斑条纹图
Electronic speckle shearing pattern interferometry电子散斑剪切干涉
speckle method pattern measurement equipment斑点图形量测设备
due to facility and practicability, spatial carrier phase-shifting method is used in dual-pulse addition digital speckle pattern interferometry.
空间载波相移法因其简单性和实用性,被应用于双脉沖散斑干涉测量中。
a new three dimensional electronic speckle pattern interferometry (espi) system is constructed by three espis through a large shearing device and a pzt phase shifter used as reference.
通过大错位剪切镜和一作为参考物的压电陶瓷相移器将三个电子散斑干涉系统组成一新的三维电子散斑干涉系统。
in dynamic measurement field, when using digital speckle pattern interferometry, we always deal phase with time-average method and spatial carrier phase-shifting method.
在动态测试领域中,数字散斑干涉技术常用到的相位处理方法有时间平均法和空间载波相移法。
electronic speckle pattern interferometry , which uses fringe analysis for nondestructive deformation field measurements, has become an important technique in the recent 20 years.
电子散斑干涉测量技术近二十年来已成为变形场测量的重要方法。
the principle and structure of laser shearography and electronic speckle interferometry were introduced. speckle pattern was disposed and analysed.
介绍了研制的激光电子剪切散斑干涉成像系统的原理及结构组成,对散斑图像进行了图像处理分析。
this is because, during the original scan, the detectors pick up such a large amount of information that a re-scan need provide only part of the speckle pattern for a reliable comparison to be made.
这是因为在原始扫描期间,探测器采集了大量信息以致于再次扫描时仅需提供部分散斑样式即可进行可靠的对比。
in this article we consider the statistical properties of the superposition of a partially polarized speckle pattern and a coherent background in an arbitrary polarization state.
本文讨论了部分偏振的斑纹图样与一个处在任意偏振态的均匀背景相干迭加的统计性质。
a statistical noise model and a mathematical model for real speckle pattern are presented, and then, in view of the models, a new adaptive suboptimal image filtering approach is proposed.
本文介绍了一种实际散斑模式的数学模型和噪声统计模型,并提出了一种针对这种模型的自适应次优滤波方法。
a new type of multi- wavelength digital speckle pattern interferometry is studied, and the possibility of analyzing complex surface geometry by using such a technique is also demonstrated.
研究了一种新的多波长数字散斑干涉技术,并证明了这种技术应用于分析复杂几何形貌表面的可能性。
in this paper , the method of measuring the in-plane displacement field under an impact loading is proposed and is named dynamic digital speckle pattern interferometry.
利用数字散斑干涉法,研究了半无限平面模型在受沖击载荷下的面内位移场的测试技术。
electronic speckle pattern interferometry(espi) is an important branch of optical measurement techniques.
电子散斑干涉测量技术是光学测量技术的一个重要分支。
then off-plane displacement field on defects under load of concentrated force was successfully measured by method of electrical speckle pattern of interferometry (espi).
同时运用电子散斑干涉方法成功地测量出试件缺陷覆盖层在受到集中力情况下的离面位移。
noise reduction is one of the most exciting problems in electronic speckle pattern interferometry.
去除噪声是电子散斑干涉测量技术的研究热点之一。
in dynamic measurement field, when using digital speckle pattern interferometry, we always deal phase with time-average method and spatial carrier phase-shifting method.
本文主要分析了它在振动检测方面的应用,利用傅里叶光学原理分析了时间平均法测量振动的原理。
electronic speckle pattern interferometry (espi) and finite element method (fem) calculation have been used to investigate the thermal failure behaviors of the metal substrate in electronic packaging.
本文将电子散斑干涉与有限元数值计算相结合,对金属基板结构的热失效行为进行了研究。
a technique for measuring phase field produced displacement under impact loading using digital speckle pattern interferometry (dspi) with combining the digital subtraction and add mode is presented.
在撞击载荷下的数字散斑干涉法(dspi)中,本文联合应用加法和减法两种模式提出了位相测试技术。
digital speckle pattern interferometry (dspi) is non-contact, full-field optical measuring technique.
数字散斑干涉技术是一种非接触、全场测试的光学测试方法。
dscm method based on the natural speckle pattern is studied. some rock material experiments are completed and the results of experiments prove the feasibility and advantage of the method.
基于这种天然散斑场的变形观测方法,进行了巖石材料变形的观测实验,验证了方法的可行性和优越性。
the method of measuring surface roughness using average contrast of laser speckle pattern can be used in measuring roughness of precise surfaces with high accuracy and high resolving power.
利用激光衍射散斑平均反差测量表面粗糙度,具有精度高和分辨高等优点,可以用于测试精密表面的粗糙度。
this paper represented the measuring method in the laser heating experiments using electronic speckle pattern interferometer(espi).
本文叙述了在激光加热实验中应用电子散斑干涉术进行测量的方法。
large-shearing electronic speckle pattern interferometry(lsespi) offers many advantages such as good fringe quality and no reference beam needed.
大剪切电子散斑干涉技术不需要引入参考光,具有条纹质量好等特点。
denoising is a key problem in phase extraction for electronic speckle pattern interferometry(espi) fringe.
去除电子散斑干涉条纹图中的噪声是提取条纹图相位的关键问题。
in this paper, a simple method for estimating fringe orientation is presented, and a method of picking up the fringe skeletons of speckle pattern from fringe orientation is discussed.
本文提出了一种计算条纹方向的简单算法,以及通过条纹方向图提取散斑条纹中心线的方法。
electronical speckle pattern interferometry(espi) is an advance technology with all electronic image record , reconstruction and computer-aided image process.
电子散斑干涉是一种利用全电子记录和计算机图象处理系统替代传统照相干版进行测量的先进技术。