Fig. 9. Sensor-head waveform reflections for a probe and cable immersed in a constant temperature bath between 1 to 50°C. The upper figure is for a 2.6-m cable and the lower figure for a 10.3-m cable. Note how the reflection coefficient of the head reduces as the cable becomes longer and how it moves with temperature. Using a fixed start point in these circumstances would result in erroneous measurements.

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