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.
