The principle of ultrasonic flaw detection is as follows: When ultrasonic waves propagate through the material being inspected, the changes in the material's acoustic properties and internal structure have a certain impact on the propagation of ultrasonic waves. By detecting the extent and condition of the ultrasonic waves affected, we can understand the material's properties and structural changes. Ultrasonic flaw detection is divided into manual and automatic methods, and we adopt the automatic method.
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