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A new method of ultrasonic featured-scan using power estimation based on ultrasonic scattering and absorbing was put forward. An experiment was conducted on a specimen made of silicon carbide particle reinforced aluminum matrix composites, from which the bottom echoes can hardly be acquired. The results show that the new method is effective to the testing of this kind of composites, which cannot be...
Flaw contour recognition is very important to heavy Plate Ultrasonic Testing (PUT) which is used to classify the plates used for ships, pressure vessels and nuclear power plants. The state-of-the-art contour recognition algorithm is too slow or inexact to be used in field. A Fast Flaw Contour Recognition (FFCR) algorithm is developed which is a hybrid of Convex Hull (CH) and Edge Detection (ED). This...
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