Ultrasonic inspection method
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United States of America Patent
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May 26, 2015
Grant Date -
May 26, 2011
app pub date -
Nov 1, 2010
filing date -
Nov 1, 2010
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A method for ultrasonically inspecting components with wavy or uneven surfaces. A multi-element array ultrasonic transducer is operated with a substantial fluid layer, such as water, between the array transducer and the component surface. This fluid layer may be maintained by immersing the component in liquid or by using a captive couplant column between the probe and the component surface. The component is scanned, measuring the two dimensional surface profile using either a mechanical stylus, laser, or ultrasonic technique. Once an accurate surface profile of the component's surface has been obtained, data processing parameters are calculated for processing the ultrasonic signals reflected from the interior of the component that eliminate beam distortion effects and reflector mis-location that would otherwise occur due to the uneven surfaces.
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