Radio-frequency sensors for obtaining the primary information about the parameters of the flows of mixtures in the conduits are proposed. Sensing element of sensor it is the resonators of the special construction, which do not create interference with flow. Are obtained the dependences of resonance frequency and amplitude of the fluctuations of resonators on the volumetric content of components of two - and the three-component emulsion and stratified flows. On the base of these dependences are developed the algorithms in connection with the specific objectives of measuring the mixtures of gas-liquid flows, in particular, such, as "gas - oil - water".