Compact multibeam shearography for deformation and vibration observation

Paulo del Carretto; Piero P. Perlo

doi:10.1117/12.185333

8 September 1994 Compact multibeam shearography for deformation and vibration observation

Paulo del Carretto, Piero P. Perlo

Proceedings Volume 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1994) https://doi.org/10.1117/12.185333
Event: Vibration Measurements by Laser Techniques: First International Conference, 1994, Ancona, Italy

Abstract

The application of a transportable electronic speckle pattern shearing instrument, based on multiple laser sources is presented. Uniform illumination over a wide surface is assured by inexpensive and multiple laser diodes. High visibility deformation and vibration patterns have been obtained using a modified Michelson interferometer, prisms, and diffractive components as shearing optics.

Citation Download Citation

Paulo del Carretto and Piero P. Perlo "Compact multibeam shearography for deformation and vibration observation", Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); https://doi.org/10.1117/12.185333

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