Understanding Acoustic Emission Testing- Reading 1 Part B-A

Energy analysis — This is an indication of the energy released by an
acoustic emission event; it may be measured in a number of ways, depending
on the equipment, but it is essentially the area under the amplitude vs. time
curve (Figure 16.4) for each burst. Alternatively, the area under the envelope
of the amplitude vs. time curve may be measured for each burst.
Charlie Chong/ Fion Zhang