Localization by Acoustic Emission in Transversely Isotropic Slate

Figure 2

Set of schistosity planes (𝑥^′𝑧^′) with local set of axes 𝑥^′𝑦^′𝑧^′. Each direction 𝑟 is defined by its angles 𝜃 and 𝜓, respectively, with the 𝑦^′-axis and with the plane orthogonal to the schistosity, 𝑥^′𝑦^′.