Laser Speckle Decorrelation Technique for In-plane Deformation Measurement

被引：0
|
作者：
Balamurugan, R. [1 ]
Prakasam, R. [1 ]
Kannan, R. [1 ]
Sengodan, R. [1 ]
机构：
[1] Kumaraguru Coll Technol, Dept Phys, Coimbatore 641049, Tamil Nadu, India
来源：
LASERS IN ENGINEERING | 2018年 / 39卷 / 3-6期
关键词：
Laser speckle; decorrelation; displacement; deformation; cross-correlation function; intensity distribution; image processing;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Application of laser speckle to the measurement of surface displacement/ deformation has been described herein. When a laser illuminated diffuse surface undergoes displacement, the speckle pattern appears in the scattered field and its image shows displacement accompanied by change in structure. They can be quantitatively described in terms of the cross-correlation function of the intensity distributions at an observation plane before and after the surface movement. The peak of the autocorrelation is always located at zero. Peak position of the cross-correlation, which generally deviates from zero, corresponds to the speckle displacement, whereas the decrease in peak height is associated with change in structure, so-called decorrelation.
引用
收藏
页码：333 / 339
页数：7
相关论文
共 50 条
  • [1] Theory of measurement of an object in-plane velocity by means of a speckle decorrelation
    Hrabovsky, M
    Horváth, P
    Baca, Z
    Smíd, P
    Soukup, L
    [J]. OPTICAL DIAGNOSTICS FOR FLUIDS SOLIDS AND COMBUSTION, 2001, 4448 : 380 - 385
  • [2] A dynamic in-plane deformation measurement using virtual speckle patterns
    Arai, Yasuhiko
    Shimamura, Ryouich
    Yokozeki, Shunsuke
    [J]. INTERFEROMETRY XIV: TECHNIQUES AND ANALYSIS, 2008, 7063
  • [3] Dynamic speckle pattern technique on measuring in-plane deformation of metal surface
    Li, JZ
    Li, SX
    Sun, YL
    An, HN
    [J]. 24TH INTERNATIONAL CONGRESS ON HIGH-SPEED PHOTOGRAPHY AND PHOTONICS, 2001, 4183 : 309 - 312
  • [4] In-plane deformation measurement by subtraction computer-aided speckle interferometry
    Fan, Jinping
    Zhang, Yonglin
    Lv, Xiaoxu
    [J]. 2009 SYMPOSIUM ON PHOTONICS AND OPTOELECTRONICS (SOPO 2009), 2009, : 552 - +
  • [5] IN-PLANE DISPLACEMENT MEASUREMENT BY SPECKLE INTERFEROMETRY
    DEBACKER, LC
    [J]. NON-DESTRUCTIVE TESTING, 1975, 8 (04): : 177 - 180
  • [6] Measurement of in-plane vibrational patterns in piezoelectric devices using laser speckle
    Watanabe, Y
    Sato, T
    Goka, S
    Sekimoto, H
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (5B): : 3120 - 3121
  • [7] Simultaneous in-plane and out-of-plane deformation measurement by speckle multi-recording method
    Arai, Yasuhiko
    [J]. MEASUREMENT, 2016, 91 : 582 - 589
  • [8] In-plane deformation measurement by digital phase-shifting speckle-interferometry
    Gushov, VI
    Nechaev, VG
    [J]. PHOTOMECHANICS '95, 1996, 2791 : 165 - 169
  • [9] PRACTICAL SPECKLE INTERFEROMETRY FOR MEASURING IN-PLANE DEFORMATION
    CLOUD, G
    [J]. APPLIED OPTICS, 1975, 14 (04): : 878 - 884
  • [10] Measurement of concentration of sugar in solutions with laser speckle decorrelation
    Mahajan, Swapnil
    Trivedi, Vismay
    Chhaniwal, Vani
    Prajapti, Mahendra
    Zalevsky, Zeev
    Javidi, Bahram
    Anand, Arun
    [J]. OPTICAL MEASUREMENT SYSTEMS FOR INDUSTRIAL INSPECTION IX, 2015, 9525
12345