Fig. 128 (abstract A116).

Pulse signal acquired by eight on board PCDs. The signal from channel 2 was abended because it seems not recording the cavitation signal. The signal on channel 4 and channel 8 were also excluded to the cavitation localization because its higher sensitivity may cause different pattern on time domain signal compare to others. A large unknown signal was frequently appeared at the begging of the recorded signal on channel 5. The signal from channel 1, 3, 6 and 7 shows similar pattern and carried for further cavitation localization process