Figure 3 | Scientific Reports

Figure 3

From: Investigation of the acoustic emission and fractal characteristics of coal with varying water contents during uniaxial compression failure

Figure 3

Systematic diagram experimental system. (a) Loading controls system includes (1) system for loading control (2) valve (b) AE signals collecting and a loading system consists of (3) Serve hydraulics press, (4) Press head, (5) coal sample, (6) AE Sensor, (7) connecting wires (8) Pressure gauge; (c) AE and EMR data processing and storage system comprises (9) pre-amplifiers, (10) system screen to display data and (11) AE monitoring device.

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