MICROWAVE TECHNIQUE FOR DETERMINING PRECIPITATED MOISTURE IN LIQUID HYDROCARBONS Russian patent published in 2015 - IPC G01N22/00 

FIELD: electricity.

SUBSTANCE: technique envisages filling of cylindrical cavity resonator with longitudinal axis perpendicular to horizon with the tested liquid, removal of the liquid upon expiry of time t≥10s from the resonator cavity with remaining moisture at the lower end wall, excitation of electromagnetic oscillation of H₀₁₁ type and evaluation of Q-factor of cylindrical cavity resonator for volume concentration of precipitated moisture, at that Q-factor is measured in conditions of excited electromagnetic oscillation of the resonator by a hollow dielectric rod placed on the resonator axis. Thickness of its walls is Δ≥0.5mm and ratio of diameter of the hollow dielectric rod d_d the resonator diameter d_OP is selected on condition that it is equal or more than 0.1.

EFFECT: increasing sensitivity of the technique at simultaneous simplification of the device hardware.

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