ABSTRACT
The paper dealswithmodern quantitative or signal-based acoustic emission (AE) techniques. In order to localize AE events accurately one needs an exact onsettime determinationmethod.These are thewavelet transformation for the filtering of signals and the autoregressive AIC picker for the automatic picking instead of the very time consuming picking by hand. Examples of localization results are given. The signal-basedAE technique can also be used for the determination of the fracture mode when the moment tensor is being evaluated. An example demonstrates how the method can be used.
