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Fig. 10. Measured two-way travel time for 281-mm length coated probe in silica sand saturated with water solutions of varying electrical conductivity (A, B) and water of varying electrical conductivity (C). (A, closed circles) Automated remote diode shorting at both the probe head and end. (B, open circles) Manual dual-tangent fitting to the raw waveforms. (C, closed squares) Measurements in water solutions using automated remote diode shorting at both the probe head and end.
