interference fringes造句
例句与造句
- ( 4 ) under the new environment , realize planar photo elastic stress analysis . based on this , it is easy to realize spatial photo elastic stress analysis . ( 5 ) under the new environment , realize interference fringe image preprocessing
( 4 )在新的软件编程环境下，具体编写及实现了一套二维光弹应力自动分析程序，为三维光弹应力自动分析程序的编写奠定了基础。 - Upon the concentration distribution of the ammonia water mixture in liquid bulk during absorption , two analysis methods were established . one is based on optical fundamental theory of the interference fringes phenomenon . the other is based on the calculation of mass transfer equation
一种方法是利用光学基本原理，通过对干涉图像的解析得到液体内部浓度分布；另一种方法是通过对定常和非定常边界条件下的质扩散方程求解，得到液体内部浓度分布。 - In this thesis , a method to calibrate a phase - shifting adapter ( psa ) with three piezoelectric ceramics based on the relationship between the displacement of pzt and the slope of interference fringe is proposed to increase the testing precision of phase - shifting interferometer
中文摘要现今高精密度的制造业要求更加准确、精确和迅速的量测学，而相移干涉学正是目前许多工业所倚重的一门量测的学问，相移精度对于相移干涉术之量测，是最可代表样品之可靠度。 - In this paper , we summarize the present testing level of optical aspheric surface , expound the principle of laser wavelength scanning interference testing method , and analyze the laser that can be tuned , and we also study the change of wavelength . further more , we achieve the elementary design of experiment device , curtly introduce the method for interference fringe processing and image processing by matlab
本文对目前国内外的光学非球面的测量现状作了概略的叙述，给出了激光波长扫描干涉测试方法的原理，对波长可调谐的激光光源进行了分析，对激光器波长的变化进行了研究，对实验装置进行了初步的设计，对干涉条纹图处理方法进行了研究，并通过编写matlab软件语言对干涉图进行了数字化处理。 - In this paper , we summarize the present testing status of optical aspheric surface , expound the principle of laser wavelength scanning interference testing method , and analyze the laser that can be tuned , and we also study the change of wavelength . further more , we achieve the elementary design of experiment device , and curtly introduce the method and principle for interference fringe processing
本文对目前国内外的光学非球面的测量现状作了概略的叙述，给出了激光波长扫描干涉测试方法的原理，对波长可调谐的激光光源进行了分析，对激光器波长的变化进行了研究，对实验装置进行了初步的设计，并对干涉条纹图处理的方法和原理进行了简单的介绍。 - It's difficult to find interference fringes in a sentence. 用interference fringes造句挺难的
- In this thesis , the general error sources for psi are analyzed . we find that the relatively low - frequency vibrations at 50hz and lower are the main problem through the analysis of the vibration sources in usual environment . a new vibration compensation method , phase modulating interference fringes fractionizing technology , has been put forward in a creative way
本文分析了干涉测量技术中存在的主要误差来源，通过对通常环境下振源特性的分析，得到了对干涉测试影响较大的振源的频率范围主要在30hz以下，确定了抗振补偿的目标和技术指标是使干涉仪的振动频率50hz ，振幅1 m 。 - The main works and contributions achieved in this dissertation are concluded as follows : 1 . based on the scalar diffraction theory , the mathematical model of optical configuration of transmissive grating interferometer is established . it indicats that moir interference fringes is affected by many parameters , such as grating pitch , light wavelength , light beam size and incidence angle , etc . the variation that the width , intensity , orientation and contrast of moir interference fringes along with every parameter is numerically analyzed
主要的研究内容和所取得的成果可归纳如下: 1 .基于标量衍射理论,建立了透射式光栅干涉仪光路的数学模型,分析了透射式光栅干涉仪的莫尔干涉条纹与光栅栅距、光栅开口比、光波波长、光斑尺寸、光束入射角等多个参数的关系。 - It has many unique advantages compared with laser interferometry . and it can achieve higher accuracy and resolution than traditional geometry moir . it has been proved to be very useful in many practical applications , such as microelectronics , ultra - precision manufacturing , bioengineering , medicine , space technology , and material science , etc . in this dissertation , key technologies of nanometer displacement measurement by grating interferometry are systematically investigated , which mainly include measuring theories , designing grating interferometer and new subdividing method for moir interference fringes
作为能够实现纳米级位移测量的技术之一,光栅干涉位移测量技术具有激光干涉仪不具备的独特优点,可以获得比几何莫尔术更高的测量准确度、更高的分辨率,在诸如微电子、超精加工、生物工程、未来医学、航天技术、材料科学等众多领域有广泛的应用前景。 - Secondly , in phase unwrapping to overcome the spread of wrong point , changing the patch of unwrapping phase is done to improve the correctness of it . then , the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly . the data processing , algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language , in all these achievements , the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe , a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together , the experimental result shows the fringe drift is less than a / 20 in five minutes , and the equivalent phase shifting precision is x / 100
论文在全面阐述了光学三维轮廓位相测量术的发展、应用现状、研究热点及未来发展趋势的基础上，简要介绍了傅立叶变换和相移位相轮廓测量术的基本原理，对两种测量方法存在的问题及误差进行详细分析和比较；针对位相解包裹错误点的传播问题，作者通过改变解包裹路径来提高位相解包裹的正确性；分析讨论从解包裹位相( x ， y )到再现物体的高度h ( x ， y )物理量之间的关系，研究相应的算法，利用matlab平台，对实际采集的条纹图像进行处理和轮廓重构，其中改进及创新工作主要表现在以下两个方面： ( a )针对干涉型结构光场干涉条纹出现的漂移抖动对相移的影响，提出了一种用条纹稳定器稳定干涉条纹，用精密移动平台使物体和ccd摄像头同步移动实现等效相移的方法，建立了相应的测量系统，系统的条纹稳定可以达到。 - The fourth chapter mainly introduces fringe center method of speckle image . a way which can double interference fringe is introduced here , and it can improve the precision of measurement . the principle of the filter in big curve window is described in detail ; it gives a detail description of its steps to realize it
第四章主要介绍了散斑图像处理的条文中心处理方法? ?条纹倍增的处理方法，它可以使散斑图像的条纹增加一倍，相对提高了测量的精度，随后详细介绍了曲线大窗口滤波的原理以及实现该方法的主要步骤，同时讨论了处理过程中的注意事项，并跟其他滤波方式做了比较。 - First , the direction of fringe variation in the interference images is different with different intake duct , but in the same intake duct , the direction is the same . second , different intake duct has different rules to flow variation . third , the infinite width of interference fringe is visual , high precision , and easy to qualitative analysis , but the finite width of interference fringe is easy to judge the direction of fringe variation and to further detailed analysis
实验结果表明，气道不同，条纹的变化方向不同，但同一气道在不同的流量下，条纹的变化方向是一致的；不同形状的气道对流量的敏感程度不同，对气体旋流的扩散作用影响也有很大的差异；用无限宽条纹法得到的图像直观，灵敏度大，易于做定性的分析对比，而有限宽条纹法可以进行流体在运动方向的判别，更有利于详细的分析研究。 - On the basis of practically achieved low - frequency laser - vibration measuring - system , this thesis analyses the principle of laser - vibration measuring - system , the optical factors which have effect on contrast degree of interference fringe , the optical - electric transformation factors which have effect on measuring accuracy , the important of filter for improving the accuracy in the absolute calibration and the outward vibration which has effect on system accuracy , etc . in chapter one , the background of laser measuring vibration , and then followed by its current status , is introduced and analyzed
本论文根据实际研制的激光测振仪系统，从提高激光测振仪精度的角度出发介绍了激光测振仪的原理，并详细地剖析了光路对测振仪干涉条纹对比度的影响、光电转换对测量精度的影响、光电信号的滤波放大以及外界振动对测振仪系统的影响等技术问题。 - In chapter three , the importance of maintaining the equal optical path between measuring beam and reference beam in measuring horizontal and vertical vibration table are analyzed , and the factors having effect on contrast degree of interference fringe are introduced . for improving the accuracy of laser - vibration - measuring - system , the phase - modulation - multi - period - average method and the vibration isolated of system are analyzed
第三章分析了光路设计中的等光程问题的重要性，以及影响干涉条纹对比度的相关因素；并从提高测量精度的角度分析了调相多周期平均法和系统的隔振。 - We build a close vibration compensation system which can successfully achieve the measurement of interference fringes movement and - vibration compensation . it puts forward pre - setting fill - in pulses method to implement phase shifting with the same pzt . with this new method , the interference fringe can be stabilized at any pre - setting phase position
提出了填充脉冲数预设定的方法，可以将干涉条纹锁定在任意设定的位相位置，实现了用pzt同时实现振动补偿和移相测量；深入分析讨论了pzt的延迟问题，创造性地提出了用多次逼近补偿的办法，给出了反馈补偿的算法，解决了补偿过程中存在的系统不稳定和过补偿的问题。 - A useful technique has been provided and developed for the researching and analyzing the factors and variation of flow field in the intake duct of diesel engine . to find out a new method to measure flow measurement , different intake duct on different conditions are experimented and researched by real - time holographic interferometry . real - time holography interferometry has many characteristics , such as high precision , non - destructive , high contrast of interference fringes and full field test
该方法具有精度高、非接触、条纹对比度好、对被测物体形状和表面无特殊要求的特点，实验了对三维非定常流动过程的可视化实时采集，为了解和分析不同流量、不同结构参数下进气道内气流运动状态和流动特性的变化关系及其影响因素提供了一种有效的测试手段。