Terahertz Spectroscopy and Imaging Detection of Defects in Civil Aircraft Composites

Figure 3

Time-domain signal imaging at defect of specimen: (a) time-domain maximum peak; (b) time-domain minimum peak; (c) maximum flight time; (d) minimum flight time; (e) peak-to-peak; (f) t = 6.85 ps; (g) t = 8.58 ps; (h) t = 9.52 ps; (i) t = 10.68 ps; (j) t = 11.89 ps.

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