Abstract:
This paper presents a low cost sensor for soil
moisture measurement based on impedance spectroscopy.
A probe has been designed which uses a simplified
impedance measuring system to determine soil water
content. Methods of soil moisture measurement need
extensive calibration processes because of the strong
dependence on soil properties. Using impedance
spectroscopy, more information can be delivered from
real and imaginary part of the complex permittivity for
several frequencies at the same moisture value.
Agriculture area in East Sumatra is especially selected for
this investigation because measurements of soil moisture
in peat swamp area were generally reported as difficult.
