Abstract
For measurement of electrophysical parameters of substances the greatest distribution was gained by resonant methods owing to high precision of the received results. The main idea of all resonant methods consists in observation of resonant curves of an oscillatory contour in which the sample of the studied substance is placed. The carried-out analysis of works has shown that the accuracy of measurements of dielectric permeability depends on stability of frequency of the generator and good quality of the measuring resonator. The equipment intended for measurement of changes of dielectric parameters of liquid has to provide not only the necessary level of the brought power and frequency of a signal, but also to meet high requirements for stability of frequency, extent of suppression of discrete components in a range of an output signal, to dimensions, reliability, profitability and service life.
Keywords:
dielectric permeability, resonator, fluctuations, frequency, excitement, wave guide, measurements