Research Article

Crack Propagation Analysis Using Acoustic Emission Sensors for Structural Health Monitoring Systems

Figure 9

Example of test results for panel load to onset of crack extension. Each point on the plot is a single strain wave detected by either sensor 1 or 2. Although some measurements appear simultaneous in recording, there are microseconds between recordings.
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(a) Acoustic emission detections from the entire experiment 
823603.fig.009b
(b) Acoustic emission data during the crack extension