Novel phase-locked electronic speckle pattern interferometry

Kaiduan Yue; Feng Zhang; Chuangshe Wang; Yushan Tan

doi:10.1117/12.269848

20 March 1997 Novel phase-locked electronic speckle pattern interferometry

Kaiduan Yue, Feng Zhang, Chuangshe Wang, Yushan Tan

Proceedings Volume 2921, International Conference on Experimental Mechanics: Advances and Applications; (1997) https://doi.org/10.1117/12.269848
Event: International Conference on Experimental Mechanics: Advances and Applications, 1996, Singapore, Singapore

Abstract

The theory, design, and characteristics of a Phase-locked Electronic Speckle Pattern Interferometry (ESPI) are described. The main principle of the Phase-lock system is to use the characteristics of spatial frequency of the object light to get the information of the phase of the objects' vibration and the disturbance of air. By using the information, we eliminate not only the influence of the objects' vibration, but also the influence of the disturbance of the air. So we can get more stable image of ESPI, and more reliable measurement result.

Citation Download Citation

Kaiduan Yue, Feng Zhang, Chuangshe Wang, and Yushan Tan "Novel phase-locked electronic speckle pattern interferometry", Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); https://doi.org/10.1117/12.269848

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