Goryeva I. The automated monitoring system of ground humidity

The object of the research is the ground and it's electrical characteristics in electromagnetic field in dependance on humidity. The aim of the work is to reduce losses of biological productivity of agricultural crops at the expense of the automatic control of ground humidity. Methods of research. Theoretical and experimental research. Development of the humidity control system was carried out on the base of the postulate of the theory electromagnetic waves extention in environment and ground zone. Electrical characteristics of the ground in electromagnetic field were determined using methods of active and passive experiment. Experimental research was carried out with the use of modern computational apparatus and equipment, with the data processing in computers. For the informative parameter of ground humidity is chosen on the theoretical model of radiowaves interaction with the ground - the reflection factor of electromagnetic waves, frequency of the electromagnetic field and of the dependance of in fluence compensation of destabilizing factors on informative signal. The circuit decisions are offered and the technical realization of the monitoring system of ground humidity for application in irrigation installations and portable device of monitoring of humidity is developed.