Application of high-speed phase-shifted speckle interferometry to the detection of subsurface delaminations in carbon fiber composites

Pablo D. Ruiz; Guillermo H. Kaufmann; Abundio Davila; Jonathan Mark Huntley

doi:10.1117/12.437203

14 August 2001 Application of high-speed phase-shifted speckle interferometry to the detection of subsurface delaminations in carbon fiber composites

Pablo D. Ruiz, Guillermo H. Kaufmann, Abundio Davila, Jonathan Mark Huntley

Author Affiliations +

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437203
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

This paper presents the application of a high-speed phase- shifting speckle interferometer to the detection of sub- surface delamination defects in carbon fiber specimens. Speckle interferograms are continuously recorded by a CCD camera operating at 1 kHz with temporal phase shifting carried out by a Pockels cell running at the same frequency rate. Temporal phase unwrapping through sequences of more than 1000 frames allows the determination of time-varying absolute displacement maps.

Citation Download Citation

Pablo D. Ruiz, Guillermo H. Kaufmann, Abundio Davila, and Jonathan Mark Huntley "Application of high-speed phase-shifted speckle interferometry to the detection of subsurface delaminations in carbon fiber composites", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437203

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