Method and system of using 1.5D phased array probe for cylindrical parts inspection
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United States of America Patent
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Jul 14, 2015
Grant Date -
Oct 31, 2013
app pub date -
Mar 29, 2013
filing date -
Mar 29, 2013
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Abstract
A method of using a 1.5D array ultrasonic probe as a component of an inspection system intended for different diameter cylindrical parts without mechanical adjustments of the probe is presented. In particular, the method is presented as a way to improve the near surface resolution over an extended range of cylindrical parts diameter and inspection depths/tubes wall thickness with respect to usual 1D arrays of fixed curvature along the elevation axis. The method relies on a customizable concentric firing pattern of the acoustic pulses with respect to the cylindrical part surface, and on adjustment of the aperture size of the said array. The intended effect is to sharpen and minimize the extent of the front wall echo and to optimize the response from an eventual flaw in the inspected range.
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