Examining device and method for examining inner walls of a hollow body
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United States of America Patent
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Dec 25, 2018
Grant Date -
Apr 6, 2017
app pub date -
Apr 24, 2015
filing date -
Jun 18, 2014
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Abstract
An examining device for examining inner walls of a hollow body comprises: a rod-shaped camera device designed to record an image transversely with respect to its longitudinal axis; adjustment means for moving the camera device into and out of the hollow body; a grazing light illumination device for illuminating the inner walls and having emission directions that are transverse with respect to receiving directions, from which the camera device receives light from the illuminated inner walls, wherein an angle between the emission and receiving directions is between 45° and 135°; diameter determination means for determining an inner diameter of a cavity of the hollow body and comprising a light source and optical measuring means. Furthermore, a corresponding method for examining inner walls is described.
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