Research on Anisotropic Characteristics of Rock and Intelligent Recognition of Precursory Signal

Figure 1

Schematic diagram of transducers arrangement. (1) The rock sample; (2) ultrasonic transducers; (3) press; (4) ultrasonic signal transmitting terminal; (5) transmitted sine signal; (6) ultrasonic signal receiving terminal; (7) preamplifier; (8) received signal; (9) shielding room.