402179.fig.008a
(a)
402179.fig.008b
(b)
402179.fig.008c
(c)
Figure 8: Comparison of crack localization in CT test on 1/2′′ steel specimen. (a) Cumulative acoustic energy by PWAS and R15I; (b) cracking detection and localization by R15I; (c) cracking detection and localization by PWAS.