DIGITAL SHEAROGRAPHY NDT SYSTEM FOR SPECKLESS OBJECTS
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United States of America Patent
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Nov 3, 2016
app pub date -
Dec 19, 2014
filing date -
Dec 20, 2013
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Abstract
A shearography system may include light source that may be configured to produce a beam of light to illuminate a test area, a camera, and an optical path between the light source and the camera, the test area disposed in the optical path between the light source and the camera. In embodiments, an image plane may be disposed in the optical path between the test area and the camera. In embodiments, the camera may be configured to obtain intensity information that may correspond to specular reflections of the beam of light off of the test area via diffuse reflections of the beam of light off of the image plane. The intensity information may correspond to out-of-plane strain of the test area.
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