Device for multiple environment parameters measurements for agriculture use

The paper presents improvements made for the experimental model of a Device for Multiple Environment Parameters Measurements for Agriculture use. The aim was to obtain a better water management by providing complete information for soil characterization in terms of moisture, as well as rain water presence. One novelty of the work is the possibility of determination of the water absorption by the soil by using three electrodes instead of two. The electrodes are placed from the very bottom of the Multi-sensor device rod towards the top at 100 mm pitch one another. There will be two measurements that will characterize the soil moisture at different depths. Another novelty is the reduction of the polarization of the electrodes. Since the soil moisture determination is not done using AC voltage, but pulsed DC voltage signal with respect to the ground, a method was designed in order to change the voltage reference each measurement.