Spatial carrier color digital speckle pattern interferometry for absolute three-dimensional deformation measurement

Abstract. It is difficult to measure absolute three-dimensional deformation using traditional digital speckle pattern interferometry (DSPI) when the boundary condition of an object being tested is not exactly given. In practical applications, the boundary condition cannot always be specifically provided, limiting the use of DSPI in real-world applications. To tackle this problem, a DSPI system that is integrated by the spatial carrier method and a color camera has been established. Four phase maps are obtained simultaneously by spatial carrier color-digital speckle pattern interferometry using four speckle interferometers with different illumination directions. One out-of-plane and two in-plane absolute deformations can be acquired simultaneously without knowing the boundary conditions using the absolute deformation extraction algorithm based on four phase maps. Finally, the system is proved by experimental results through measurement of the deformation of a flat aluminum plate with a groove.

[1]  K. Creath.  Phase-Shifting Speckle Interferometry , 1985, Optics & Photonics.

[2]  Guoqing Gu,et al.  Synchronous triple-optical-path digital speckle pattern interferometry with fast discrete curvelet transform for measuring three-dimensional displacements , 2016 .

[3]  Lianqing Zhu,et al.  Review of electronic speckle pattern interferometry (ESPI) for three dimensional displacement measurement , 2014 .

[4]  K A Stetson.  Use of sensitivity vector variations to determine absolute displacements in double exposure hologram interferometry. , 1990, Applied optics.

[5]  M. P. Kothiyal,et al.  Use of spatial phase shifting technique in digital speckle pattern interferometry (DSPI) and digital shearography (DS). , 2006, Optics express.

[6]  Lianxiang Yang,et al.  Precision measurement and nondestructive testing by means of digital phase shifting speckle pattern and speckle pattern shearing interferometry , 1995 .

[7]  Mikael Sjödahl,et al.  Two wavelength simultaneous DSPI and DSP for 3D displacement field measurements , 2011 .

[8]  Lianxiang Yang,et al.  Synchronous measurement of three-dimensional deformations by multicamera digital speckle patterns interferometry , 2016 .

[9]  Pramod Rastogi,et al.  Recent developments in digital speckle pattern interferometry , 2003 .

[10]  Wolfgang Osten,et al.  High-speed digital holographic interferometry for vibration measurement. , 2006, Applied optics.

[11]  Lianxiang Yang,et al.  Simultaneous dual directional strain measurement using spatial phase-shift digital shearography , 2016 .

[12]  Andreas Ettemeyer,et al.  A Practical Approach to the Problem of the Absolute Phase in Speckle Interferometry , 2004 .

[13]  Junrui Li,et al.  Whole-field thickness strain measurement using multiple camera digital image correlation system , 2017 .

[14]  Lianxiang Yang,et al.  Experimental study of FLD0 for aluminum alloy using digital image correlation with modified ISO method , 2016 .

[15]  Yingjie Yu,et al.  3D deformation measurement based on colorful electronic speckle pattern interferometry , 2015 .

[16]  T. Fricke-Begemann,et al.  Speckle interferometry: three-dimensional deformation field measurement with a single interferogram. , 2001, Applied optics.

[17]  A J Moore,et al.  Transient deformation measurement with electronic speckle pattern interferometry and a high-speed camera. , 1999, Applied optics.

[18]  Maurice Whelan,et al.  Calibration and evaluation of optical systems for full-field strain measurement , 2007 .

[19]  J. M. Huntley,et al.  Temporal phase-unwrapping algorithm for automated interferogram analysis. , 1993, Applied optics.

[20]  Lianxiang Yang,et al.  Advanced optical methods for whole field displacement and strain measurement , 2010, 2010 International Symposium on Optomechatronic Technologies.

[21]  Lianxiang Yang,et al.  Simultaneous measurement of deformation and the first derivative with spatial phase-shift digital shearography , 2013 .