The influence of piezo-electric transducer displacement error on defect detection in digital shearography speckle pattern interferometry

Zhan, Yage, Zhang, H. Y., Ye, X. C., Zhou, Y. Z., Qiu, Z. S., Yang, F., Zhong, P., Jiang, M., Zhou, H. Y.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Y. G. Zhan, H. Y. Zhang, X. C. Ye, Y. Z. Zhou, Z. S. Qiu, F. Yang, P. Zhong, M. Jiang, and H. Y. Zhou The influence of piezo-electric transducer displacement error on defect detection in digital shearography speckle pattern interferometry (Влияние ошибок перемещения пьезоэлектрического привода на обнаружение дефектов в цифровой сдвиговой интерферометрии) [на англ. яз.] // Оптический журнал. 2017. Т. 84. № 6. С. 44–50.

Y. G. Zhan, H. Y. Zhang, X. C. Ye, Y. Z. Zhou, Z. S. Qiu, F. Yang, P. Zhong, M. Jiang, and H. Y. Zhou The influence of piezo-electric transducer displacement error on defect detection in digital shearography speckle pattern interferometry (Влияние ошибок перемещения пьезоэлектрического привода на обнаружение дефектов в цифровой сдвиговой интерферометрии) [in English] // Opticheskii Zhurnal. 2017. V. 84. № 6. P. 44–50.

For citation (Journal of Optical Technology):

Y. G. Zhan, H. Y. Zhang, X. C. Ye, Y. Z. Zhou, Z. S. Qiu, F. Yang, P. Zhong, M. Jiang, and H. Y. Zhou, "Influence of piezoelectric transducer displacement error on defect detection in digital shearography speckle pattern interferometry," Journal of Optical Technology. 84(6), 395-400 (2017). https://doi.org/10.1364/JOT.84.000395

Abstract:

This paper focuses on the influence of Piezoelectric Transducer displacement error on the detection ability of Digital Shearography Speckle Pattern Interferometry. The estabilished model is based on the principle of shearography using the software of Ansys and Matlab. The simulation uses a circular thin aluminum plate with pressure exerted in the center as a model. The simulation conclusions show that when the loading intensity is large, the defect size is big, the defect location is near to the surface and close to loading, the influence of Piezoelectric Transducer displacement error on defect detection is weak. Defects can be detected easily. Otherwise, the influence is great, which may hardly detect the defect. To the best of our knowledge, it’s the first published paper focuses on the influence of Piezoelectric Transducer displacement error on the detection ability of Digital Shearography Speckle Pattern Interferometry. The conclusions can provide some useful guidance to the actual experiment.

Keywords:

DSSPI, temporal phase-shift, PZT displacement error, defect detection, SNR

Acknowledgements:

The authors would like to express our sincere thanks to the “DHU Distinguished Young Professor Program”, Chinese Scholarship Council (No. 201506635013), the National Natural Science Foundation of China (Grant No. 51575099, 61108067), the Shanghai Natural Science Foundation (Grant No. 15ZR1401700), Pujiang Program(No. 14PJ1400100), the Fundamental Research Funds for the Central Universities (No. 2232014D3-28) for supporting.

OCIS codes: 120.6160, 120.4290, 050.5080

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