It is disclosed a method of measuring the thickness andor the depletion of Al and Cr of a \u03b3\u03b3\u2032 MCrAlY-coating after the use in a high temperature environment, the \u03b3\u03b3 MCrAlY-coating exhibiting a non-equilibrium \u03b3\u03b3\u2032-microstructure at a temperature lower than the temperature during operation. The catheter comprises an elongated tubular catheter body having an outer wall, proximal and distal ends, and at least one lumen extending therethrough. Further, a memory allocated to each component can be operated without channel discrimination through the extension fields and the remultiplexing effect. The outer shell includes at least one shell segment removably attachable to a corresponding frame section. Information including the logical distance between the first and second anchors indicated by the received chronotope is conveyed to a user of the mobile device. Compared to conventional continuous, high rate pulse trains having regular inter-pulse intervals, the non-regular pulse patterns or trains that embody features of the invention provide a lower average frequency.