Figure 12.

Analysis of the variation in rise time $t_{\mathrm{cv}}$ from $5\times {10}^{-4}$ s to ${10}^{-6}$ s, with $v_{\mathrm{c}}=3540$ mm/s: (a) the signal ${\overline{\sigma }}_1$ at the input face; and (b) the respective signal ${\overline{\sigma }}_2$ at the output face.