Method and apparatus for measurement of the profile geometry of cylindrical bodies
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United States of America Patent
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Sep 15, 2015
Grant Date -
Mar 14, 2013
app pub date -
Feb 2, 2011
filing date -
Mar 11, 2010
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Abstract
A two-dimensional light-section method for measuring the profile geometry of cylindrical bodies is disclosed. A fan-shaped laser line forming a light-section line on the surface of the body is imaged with at least one laser, and the laser radiation reflected from the surface of the body is captured by at least one area imaging camera, wherein the laser and the camera are arranged at a triangulation angle in a normal plane aligned with the cylinder axis. The profile geometry is then measured by pivoting the laser out of the normal plane about the cylinder axis. The angle with respect to the normal plane is selected such that the optical axis of the area imaging camera with respect to the surface of the cylinder is located within the glancing angle range of the reflected beams.
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