Page 435 - Forensic Structural Engineering Handbook

12.26 MATERIAL-SPECIFIC FORENSIC ANALYSES

Antenna

Signal
Structure Output
processing
FIGURE 12.22 Schematic of impulse radar. (Courtesy of CTLGroup.)

Impactor Accelerometer

Time domain

Voltage
Delamination

Time
High-speed data
acquisition computer Frequency domain

Delamination
Amplitude

Frequency
FIGURE 12.23 Schematic of the impact-echo technique. (Courtesy of CTLGroup.)