570
Y. Luo et al.
Table 50.2
Statistical table of characteristic parameters of acoustic emission of various kinds of signals
Cluster
Amplitude (dB)
Frequency (kHz)
Duration (μs)
Rise time (μs)
Ringing counts
Energy (mV ms)
Proportion (%)
A
[40,99]
[156,350]
[0,35814]
[0,17207]
[1,3846]
[0,1831]
32.15
B
[58,99]
[19,78] [234,322]
[34822,100000]
[12,65292]
[1804,11145]
[360,2171]
1.91
C
[51,99]
[9,175]
[77,58383]
[0,37126]
[7,3981]
[1,755]
10.77
D
[40,52]
[9,166]
[0,16283]
[0,9070]
[1,474]
[1,202]
55.17