Fig. 2. Time-domain reflectometry (TDR) waveforms collected during the measurements in the KBr solutions using two coated–uncoated probes (CUP2 and CUP3). The waveforms are taken at three different levels of electrical conductivity: (a) 0.015, (b) 2.00, and (c) 8.95 dS m^–1. The + signs indicate the end reflection of the probe estimated by the wave analysis software.