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A FLEXIBLE SENSOR WITH PIEZOELECTRIC ARRAY APPLIED FOR WELD DEFECT DETECTION BASED ON FEATURE GUIDED WAVES AND ITS TESTING METHOD
A FLEXIBLE SENSOR WITH PIEZOELECTRIC ARRAY APPLIED FOR WELD DEFECT DETECTION BASED ON FEATURE GUIDED WAVES AND ITS TESTING METHOD
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机译:一种具有压电阵列的柔性传感器,施加基于特征导波的焊接缺陷检测及其测试方法
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摘要
Provided is a sensor and method for weld defect detection. The sensor includes several piezoelectric elements which form a matrix arranged on a flexible substrate. Each piezoelectric element is covered with a damping block and surrounded by sound absorbing material, and packaged within a flexible protective film. The sensor is simple, highly adaptable and high detection efficiency, which is especially suitable for the quick in-service inspection of long distance welds in large equipment, it has high degree of automation.
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