International Journal of Aerospace Engineering / 2013 / Article / Fig 19

Review Article

A Methodological Review of Piezoelectric Based Acoustic Wave Generation and Detection Techniques for Structural Health Monitoring

Figure 19

(a) Longitudinal wave echo signal ( ) and shear wave echo signal ( ), reflected from the probe’s end. Waves generated and received by one IUT; (b) shear wave echo signal ( ), reflected from the probe’s end. Waves generated and received by the other IUT. Superscripts 2 and 4 designate the first and second round trip waves, respectively.
928627.fig.0019a
(a)
928627.fig.0019b
(b)