Detection of the deterministic component in acoustic emission signals from mechanically loaded rock samples

Using the Takens theorem, the attractor was reconstructed for amplitudes of acoustic emission signals measured during fracture of granite samples. Systematic features of the temporal behavior of system dynamic characteristics, such as the embedding dimension, fractal dimensions, recurrence plots, and their numerical parameters, were determined. For a preliminarily water-saturated sample, an order–disorder phase transition was detected in the structure of acoustic emission signals.