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Ultrasonic immersion inspection of the member having an arbitrary surface contour
Ultrasonic immersion inspection of the member having an arbitrary surface contour
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机译:对具有任意表面轮廓的部件进行超声波浸没检查
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摘要
A method for ultrasonically inspecting components with wavy or uneven surfaces. A multielement 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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