ABSTRACT
The knowledge of the dielectric constant gives information on the properties of the material. The measurement of the dielectric constant can be carried out in various ways. The methods used are based on the measurement of AC capacity: bridge, resonance, or heterodyne method, and phenomena connected with electromagnetic waves. The determination of the dielectric constant of liquids is generally carried out with the help of a calibration curve. Measurement of the dielectric constant of powders is possible by the immersion method or by the direct method. The determination of the water content is the most useful area of dielectrometry. The water content of different mixtures, powders, and oils can be determined, using a calibration curve plotted on the basis of the results obtained in standards containing different amounts of water.
