Variable Aperture Method of Ultrasonic Annular Array for the Detection of Addictive Manufacturing Titanium Alloy

Figure 10

C-scan results of the additive manufacturing specimen of dynamic focusing method. (a) Fixed aperture method of linear array (10 MHz, 64 elements). (b) Fixed aperture method of annular array. (c) Variable aperture method of annular array.

(a)

(b)

(c)