To date diverse soil moisture sensors have been commercially available but all of these are at point-scales of centimeters-to-decimeters with limited volume of sensitivity(VOS).In many cases,the spatial variability of soil moisture distribution can be considerably larger than the VOS.A novel motorized dielectric PVC-tube sensor prototype was presented for horizontally scanning soil moisture content(maximum scanning length 380 cm).The sensing probe was cylindrical and thus can be mobilized through the PVC tu...