Development and Application of the Single-Spiral Inductive-Capacitive Resonant Circuit Sensor for Wireless, Real-Time Characterization of Moisture in Sand

Figure 6

A typical sensor’s resonant frequency response with respect to time during the drying of the sand sample with the size of the sand ranging from 0.15 to 0.3 mm. Standard deviations of the curves are shown as error bars in the plot.