
[力] 散斑干涉法;斑纹干涉学;斑纹干涉测量术
Measuring heating stress of metal material at the welding points by using one beam laser speckle interferometry;
本文用单光束激光散斑干涉法测量了内燃机连杆的变形。
This paper presents double graph dual-beam speckle interferometry, and the experiment shows an agreeable result with the theoretical analysis.
作者在本文中首次提出双片双光束散斑干涉法,并成功地进行了实验。
In this paper, the experiments for two kinds of glass fiber epoxy laminates is carried out by using speckle interferometry.
采用散斑干涉法,对两种铺层方式的环氧基玻璃纤维层合板的弹性模量、泊松比和应力-应变曲线进行了实验研究。
This results provide the basis for analysing fringe quality of speckle interferometry.
这一结果为进一步分析散斑干涉场条纹质量提供了依据。
Paper analyzed inconsistency between larger deforming and small measuring range, and analyzed measuring range match of laser holographic and speckle interferometry.
对实验中遇到的大变形小量程矛盾、激光全息和散斑的量程匹配等问题进行了分析。
A new method of big shearing digital speckle interferometry is presented.
提出一种新的大错位数字散斑干涉术。
Both theory and experiments show that stroboscopic shearing speckle interferometry is obviously superior to time-average method.
理论和实验都表明频闪剪切散斑干涉照相法要优于时间平均剪切散斑干涉照相法。
The TV-Holography or electronic speckle interferometry (ESPI) method is adopted in the modal test of board-level package.
采用电视激光全息干涉技术进行板级封装的模态实验。
A new experimental method for measuring resonant frequencies of objects is proposed by use of rotating shearing stroboscopic speckle interferometry.
提出一种测量物体固有频率的新方法———旋转剪切频闪散斑干涉法。
In this report, the basic principle and methods of laser beam reflective holographic and speckle interferometry for studying the three-dimensional displacement fields are presented.
本文介绍了激光一束光反射式全息和激光散斑干涉法基本原理,两者结合分析三维位移场的基本方法。
Single beam Laser speckle interferometry has been used to measure the deformation of internal combustion engine connecting rod in this paper.
本文用单光束激光散斑干涉法测量了内燃机连杆的变形。
The methods of laser holography and laser speckle interferometry have been used to study the correlations between rock or soil and structure.
采用激光全息摄影和激光散斑干涉计量法,研究了岩、土和建筑物之间的关系。
A laser schlieren-speckle interferometry system for diagnosticating the field of phase object, such as combustion, convection. free-jet, supersonic flow and plasmaetal, is proposed.
本文给出了诊断相位场,如燃烧、对流、自由射流、超声速流场和等离子体等的一种激光纹影-散斑干涉系统。
The principle of imaging system for laser electron shear speckle interferometry is presented.
介绍了激光电子剪切散斑干涉成像系统的原理;
Micro speckle interferometry is employed to detect the deformation of the micro beam in the equilibrium and the experimental results are compared with the theoretical prediction.
最后应用微散斑干涉,检测粘附平衡态时微桥和微梁的粘附力以及由毛细粘附所导致的弯曲变形,并与理论计算结果进行比较。
The application of image processing technique in speckle interferometry is stu***d and a speckle image correlation digital technique is presented in the paper.
研究图像处理技术在散斑测量中的应用,提出了一种散斑图像相关数字技术。
The theory of speckle interferometry is applied to study the measurement of the in-plane displacement of solid surface by laser Doppler effect.
本文采用散斑干涉理论研究固体表面面内位移测量的激光多普勒效应方法。
In this paper, the intensity distribution of interference field of holo-speckle interferometry is derived when the error of system geometry exists.
本文导出了存在系统几何偏差时全息一散斑干涉术中干涉场的强度分布。
It has been explained that the relation between the speckle interferometry and the speckle shearing interferometry by using the theory of the movement of space speckle.
还利用散斑空间运动规律较好地解释了散斑干涉与散斑剪切干涉之间的关系。
It is expected that the comprehensive application of holographic and speckle interferometry to the measurement of a 3-d displacement field would be an effective method for solving practical problems.
可以设想,全息干涉法和散斑干涉法的综合应用将是测量物体三维位移场和解决实际问题的一种行之有效的方法。
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。
In the field of optical deformation measurement, obtaining the fringe phase information from one speckle interferometry high accurately and automatically is a difficult problem.
在光测力学中,如何从单幅散斑干涉条纹图中高精度地自动提取方向信息是一项较困难的工作。
Laser speckle interferometry is a new technique in latter-day optics.
斑干涉法是近代光学的一项新技术。
In this paper, an experimental investigation by laser speckle interferometry is carried out to determine the stress intensity factors for crack at the interface of bixma- terial.
文中采用激光散斑照相法确定了异弹模界面裂纹尖端的应力强度因子。
A new experimental technique on the CTE measurement of metal composite leads in electronic packaging using laser speckle interferometry was presented.
散斑干涉或电子散斑干涉计量应用于连续运动或变形物体时 ,就会产生一个时变的散斑干涉场。
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冲击载荷下的面内位移场的测试技术。
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。
散斑干涉测量(speckle interferometry)是一种基于光学干涉原理的高分辨率成像技术,主要用于天文学和精密光学测量领域。其核心原理是利用激光在粗糙表面反射或透射时形成的随机散斑图案(speckle pattern),通过短曝光成像和后期数据处理消除大气湍流等因素引起的图像失真。
该技术最早由法国天文学家Antoine Labeyrie于1970年提出,通过采集目标物体在毫秒级曝光时间内的大量散斑图像,利用傅里叶变换等算法提取相位信息,最终合成超越单次成像分辨率的清晰图像。根据国际光学工程学会(SPIE)的公开研究,散斑干涉测量可将地面望远镜的分辨率提升至理论衍射极限的2-5倍,显著提高对双星系统、恒星表面活动等天文现象的观测精度。
在应用层面,该技术已发展出两种主要分支:
目前欧洲南方天文台(ESO)的甚大望远镜(VLT)和美国NASA的哈勃空间望远镜均配备改进型散斑干涉系统,相关技术细节可在《皇家天文学会月报》和《应用光学》期刊获取最新研究成果。
Speckle Interferometry(散斑干涉测量术) 是一种基于激光散斑现象的精密测量技术,主要用于检测物体表面的微小形变、振动或位移。以下是详细解释:
词义分解
技术原理
通过记录物体在受力或形变前后的散斑图案,利用干涉原理对比两幅图像的相位变化,从而计算出物体的位移或应变。例如,频闪剪切散斑干涉术(Stroboscopic Shearing Speckle Interferometry)可用于动态形变分析()。
应用领域
技术发展
现代技术常结合数字信号处理(DSP)和计算机算法,实现散斑数据的快速采集与分析()。
该技术通过高灵敏度的光学手段,为微观形变测量提供了非接触式解决方案。更多应用案例可参考相关文献或专业设备说明(如斑纹干涉仪,)。
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