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双曝光     
相关语句
  double exposure
     Measuring Normal Deformation Produced by Residual stress in Friction Welding Joint Using Double exposure Holography
     双曝光全息法测量摩擦焊接头残余应力引起的法向变形
短句来源
     Double Exposure Holography with Recorded Beams Modulated by the Plate Motion
     干版运动调制光束双曝光全息
短句来源
     Coupling Between Compression Temperature Field and Spray In A Real Diesel Engine by Laser Double Exposure Holographic Technique
     采用激光双曝光全息干涉技术研究相互耦合的柴油机压缩温度场与喷雾场
短句来源
     An object is tested by single exposure or double exposure methods in using two wavelength holographic interferometry (TWHI). This is analogous to test the object using an equivalent wavelength λ eq =λ 1λ 2/|λ 1-λ 2|,so the range of test wavelength is enlarged.
     当用双波长全息干涉术通过单次曝光法或双曝光法对物体进行测量时 ,其效果相当于用一个等效波长λeq=λ1 λ2 /|λ1 -λ2 |对物体进行测量 ,扩大了测量波长的可选范围。
短句来源
     Application of double exposure laser holography——nondestructive testing of tyres with the way of vacuum and increased pressure
     应用双曝光激光全息照相术—真空加载法进行轮胎无损检验
短句来源
更多       
  double-exposure
     Real-time double-exposure interferometry with Fe:LiNbO_3 crystals
     用Fe:LiNbO_3晶体进行实时双曝光干涉的研究
短句来源
     The Use of Fe:LiNbO_3 in Real-Time Double-Exposure Holographic Interferometry
     Fe∶LiNbO_3晶体在实时双曝光全息干涉计量中的应用
短句来源
     Double-exposure holographic interferomctry is sensitive to the measuring of out-of-plane displacement and double-exposure speckle interferometry is sensitive to the measuring of in-plane displacement.
     双曝光全息干涉法对测量物体离面位移分量较敏感,双曝光散斑干涉法对测量物体面内位移分量较敏感。
短句来源
     Double-Exposure Technique to Improve Lithography Quality
     提高光刻图形质量的双曝光技术
短句来源
     This paper proposes the technical application of time-averaged and double-exposure holographic interferometry and discuss the application of single-exposure interferometry.
     本文给出这种新技术在时间平均和双曝光全息干涉计量上的应用,并讨论了在单次曝光全息干涉计量(实时法)上的应用。
短句来源
更多       
  double exposed
     This paper mainly deals with how to use one beam laser speckle photography at the welding points of the titanium alloy steel plate,Resulting in a series of double exposed displacement speckle photoes with the varying of temperatures.
     本文对钛合金钢板的焊接部位进行了单光束激光散斑照相,得到了一系列由某一高温降至室温时的双曝光位移散斑图。
短句来源
  double-exposed
     Successive Double-Exposed Holographic Interferometry
     用逐次双曝光方法的全息干涉计量
短句来源
     The principle and the experimcntal layout of holographic interferometry by means Of successive double-exposed method are described in the paper. Experimental results and their brief analyses are presented.
     本文叙述一种用逐次双曝光方法进行全息干涉计量的原理和实验系统,并给出了实验结果和初步分析。
短句来源
     By single-exposed grating interference or double-exposed,flow field of shock wave propagation through curved channel around doublecylinder is investigated in this paper .
     采用单曝光光栅干涉或双曝光光栅干涉,研究激波过弯道绕双圆柱传播的微波流场。
短句来源
     Double-exposed technique was used to compare the transportation incidence between two groups.
     采用双曝光技术比较两种器械预备弯曲根管后的根管偏移发生率。
短句来源

 

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      double exposure
    Double exposure holographic interferometry was used to visualize the converging cylindrical shock waves.
          
    The internal flowfield including shock reflections structure inside a 2-D half inlet model was examined by a double exposure holographic interferometry using a Q-switched pulse laser.
          
    The reflection of shock waves over cones was visualized using double exposure holographic interferometry.
          
    Double exposure speckle photography is applied for the statistical analysis of such flows.
          
    In order to interpret the interaction of shock wave over the sphere, high speed video recordings and double exposure holographic interferometric observations were also conducted.
          
    更多          
      double-exposure
    Measurements were performed using the double-exposure method of holographic interferometry and methods of holographic (time-averaged) and laser vibrometry.
          
    Double-exposure variable shear holographic interferometry with controlled sensitivity
          
    A method of simultaneous recording of double-exposure holograms with different lateral shears is proposed.
          
    Some characteristics of relief formation on photothermoplastic carriers used in double-exposure interferometry
          
    An analysis is made of the main trends in the development of a surface relief on photothermoplastic carriers of optical information used to record double-exposure holographic interferograms.
          
    更多          
      double exposures
    It has been found that a pattern matching technique is significantly superior to the traditional autocorrelation method in the case that a large particle displacement between the double exposures is present on the image.
          
    As explained before, it is also valid only for the particular S/N-ratio distribution in the two double exposures.
          
    In Appendix A we first use a set of two double exposures to derive a limiting S/Nratio of 3.0 above which the reliability is unity.
          
    In correlating double exposures there are always particles in one group that do not have matching particles in the other group.
          
    Photos were taken using bright-field and dark-field double exposures with a yellow filter during the dark field exposure.
          
    更多          
      其他


    This report describes the elementary principles of holographic interferometry and some applications of its three basic methods in mechanics, namely, double exposure, real-time and time average. The problem of how to simplify the analysis of fringe data has also been treated.

    本文阐述全息干涉计量术的基本原理和三种基本方法——双曝光法、实时法和时间平均法在力学中的某些应用,并且讨论了如何简化条纹数据分析。

    Double-exposure holographic interferomctry is sensitive to the measuring of out-of-plane displacement and double-exposure speckle interferometry is sensitive to the measuring of in-plane displacement. 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.After repeated experiments on the instrument of the surface grinding, as far as several different synthesis of these...

    Double-exposure holographic interferomctry is sensitive to the measuring of out-of-plane displacement and double-exposure speckle interferometry is sensitive to the measuring of in-plane displacement. 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.After repeated experiments on the instrument of the surface grinding, as far as several different synthesis of these two methods are concerned, a different axes synthesis is presented in this paper. With this new method it is very convenient to measure the 3-d displacement component in practical engineering problems. Its measuring accuracy can meet engineering demands.

    双曝光全息干涉法对测量物体离面位移分量较敏感,双曝光散斑干涉法对测量物体面内位移分量较敏感。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。 本文针对平面磨削测力仪,就这两种技术各种不同的综合方式进行了多次反复的试验,提出了不同轴型综合法。此方法对工程实际问题中三维位移分量的测试是比较方便的,测量精度也能满足工程需要。

    A novel apparatus of laser high-speed holography is described, which mainly consists of a single-mode operating ruby laser and a light beam deflector. The laser is used as a coherent light source to produce sequential pulses. The light beam deflector is made of ZF-6/36° YLN. By this apparatus we have successfully taken the double-exposure dynamic holograms at a frequency up to 50 KHZ, therefore, each picture has 4—8 patterns. In the articale, we dis cussed some fundamental questions, such as the steady operation...

    A novel apparatus of laser high-speed holography is described, which mainly consists of a single-mode operating ruby laser and a light beam deflector. The laser is used as a coherent light source to produce sequential pulses. The light beam deflector is made of ZF-6/36° YLN. By this apparatus we have successfully taken the double-exposure dynamic holograms at a frequency up to 50 KHZ, therefore, each picture has 4—8 patterns. In the articale, we dis cussed some fundamental questions, such as the steady operation conditions of the laser, the thermo-distortion of acoustic optical dctector, and the selection of schemes for recording multiple hologram, etc. Finally, sense experimental results are shown.

    本文报导了一种新型的激光高速全息摄影装置,它采用单模运转的序列脉冲红宝石激光器作相干光源,ZF-6/36°Y切LN作光束偏转器,成功地获得了拍摄频率为50KC,幅数为4~8的双曝光动态全息图。文中论述了选模序列脉冲激光器的稳定运转条件,声光偏转器的热畸变以及多重全息记录方案选择等基本问题,最后展示了部分实验例证。

     
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