Abstract
In order to give the flaw reconstruction technique a wider application in ultrasonic nondestructive testing, a new technique of cross-sectional imaging using the correlation synthesizing delayed amplitude technique (CSDAT) with signals from a transducer linear array has been developed. This technique is suitable for wider use because of its simple installation, convenient operation and fast algorithm. In this paper, the imaging system, the principle of correlation synthesizing delayed amplitude, some experimental results and test results for a large forging in the Harbin Turbine Works are introduced.
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