UT: This method of testing for flaws utilises sound waves which are introduced into the component via an ultrasonic source, as the sound travels through material reflections or echoes occur from the back surface. In addition any internal discontinuity will reflect the sound wave and generate a signal into the receiver. The time lags of the echoes are measured to determine the thickness of the material and the distance to the discontinuity.
This method of testing for flaws utilises sound waves which are introduced into the component via an ultrasonic source, as the sound travels through material reflections or echoes occur from the back surface. GE DM5E
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