A Novel Sensor for Noninvasive Detection of In Situ Stem Water Content Based on Standing Wave Ratio

Figure 7

(a) The effect of dielectric constant on StWC sensor. (b) The effect of electric conductivity on StWC sensor. (c) The effect of temperature on StWC sensor. (d) The effect of stem diameter on StWC sensor.

(a)

(b)

(c)

(d)