Guided Wave Focusing Imaging Detection of Pipelines by Piezoelectric Sensor Array

Table 2

Parameters of the equipment indicators.

Parameter name	Value
Data transfer	USB2.0
Excitation frequency	10 kHz~500 kHz
Excitation amplitude	180 Vpp
Programmable gain amplifier	0~42 dB
Maximum sampling rate	100 MHz
Sampling length	655 us@50 MHz
Power supply	220 V AC