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Stroboscopic digital shearographic system for vibration analysis of large-area object

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Abstract

Digital shearography has become a competitive tool for vibration analysis due to its capability of full-field, high resolution, and high-speed measurements. Many stroboscopic shearographic systems have been developed in recent years. However, they are only suitable for vibration analysis of a small area. This paper presents a shearographic system that was developed to carry out the vibration analysis of a large-area object whose area is 1 m2 or even bigger. The system can use both time-average and stroboscopic illumination methods to analyze the forced vibration distribution. The setup of the system is introduced and experimental results are presented.

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Authors and Affiliations

  1. Department of Measurement-control Technology & Instrumentation, Beijing Information Science & Technology University, Beijing, 100192, China

    Lianqing Zhu, Sijin Wu & Lianxiang Yang

  2. Department of Mechanical Engineering, Oakland University, Rochester, Michigan, 48309, USA

    Lianxiang Yang

Authors
  1. Lianqing Zhu
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  2. Sijin Wu
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  3. Lianxiang Yang
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Correspondence to Sijin Wu.

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Zhu, L., Wu, S. & Yang, L. Stroboscopic digital shearographic system for vibration analysis of large-area object. Instrum Exp Tech 57, 493–498 (2014). https://doi.org/10.1134/S0020441214040113

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  • DOI: https://doi.org/10.1134/S0020441214040113

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