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Ultrasonic Testing (UT)
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Ultrasonic testing echoes
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Ultrasonic testing echoes
I have a doubt about in echoes.if I get a backwall echo in v1 block at 25mm and the second backwall Is at 50mm. Now I’m scanning in a workpiece which has thickness of 50mm and the backwall is 50,100,150.if I’m getting a defect at 20mm in 50mm workpiece then 1st defect echo is at 20mm and second echo on 70mm.why it’s not comming in 40 mm?
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