Research of a Laboratory Installation for Measuring the Humidity Characteristics of Bulk Materials

Abstract

The article discusses the developed universal microwave experimental laboratory setup designed to study the electrophysical characteristics of bulk materials using grain as an example. The installation is built in a two-channel version. In this case, the measured value is the level of difference in phase and amplitude of the microwave wave of the reference and working channels. The results of experimental studies of the temperature-frequency characteristics of the conversion parameters, as well as the influence of interfering factors on the conversion parameter are presented. In this article the obtained experimental results allow us to clarify the type and parameters of the conversion function when measuring wheat moisture in free space.