Experimental Study on Lateral Resolution of Phased Array Ultrasonic Testing of Irregular Structure Weld Defects

<div>Interaction of center frequency, focal length and element number of the transducer on amplitude difference (Response surface plot and contour plot): (a) number of elements is 36; (b) focus length of 30 mm; (c) Transducer frequency of 10 MHz.</div>

Shock and Vibration

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Figure 4

Figure 4: Experimental Study on Lateral Resolution of Phased Array Ultrasonic Testing of Irregular Structure Weld Defects 