Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone

Figure 3

Experimental system. 1: RS-2A sensor; 2: adjustable gain amplifier; 3: adjustable gain amplifier of excitation pulse source; 4: computer; 5: acoustic emission analyzer; 6: top view of the position of the end face excitation pulse signal; 7: profile of the position of terminal excitation pulse signal.