Scattered Light Speckle And Its Application To Interior Strain Measurement

Ye Ying Zhao

doi:10.1117/12.938622

25 November 1986 Scattered Light Speckle And Its Application To Interior Strain Measurement

Ye Ying Zhao

Proceedings Volume 0661, Optical Testing and Metrology; (1986) https://doi.org/10.1117/12.938622
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada

Abstract

By using a "white-light" laser to illuminate a thin sheet of a transparent body seeded with tiny glass beads interior strain fields can be obtained by photographing the speckles before and after deformation via double exposure and subsequent Fourier filtering. Experimental results of interior strains of a block loaded by a ball were obtained and compared to theory with good agreement.

Citation Download Citation

Ye Ying Zhao "Scattered Light Speckle And Its Application To Interior Strain Measurement", Proc. SPIE 0661, Optical Testing and Metrology, (25 November 1986); https://doi.org/10.1117/12.938622

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