Understanding Acoustic Emission Testing- Reading 1 Part B-A

instrumentation dead time- see dead time, instrumentation.
first hit location- a zone location method defined by which a channel among
a group of channels first detects the signal. (the location of the channel?
Probe?)
floating threshold- any threshold with amplitude established by a time
average measure of the input signal. (E 750)
hit- the detection and measurement of an AE signal on a channel.
interval, arrival time (∆t ij )- the time interval between the detected arrivals of
an acoustic emission wave at the ith and jth sensors of a sensor array.
Charlie Chong/ Fion Zhang
E1316-05