METHOD AND DEVICE FOR DETERMINING OCTANIC NUMBERS OF AUTOMOTIVE GASOLINE Russian patent published in 2017 - IPC G01N27/60 

FIELD: measuring equipment.

SUBSTANCE: method for determining the ON of automotive gasoline is to determine the current value of the information parameter of the analyzed gasoline and to determine the ON for the corresponding calibration dependence. The value of the information parameter is determined by measuring the current temperature values and the information parameter of the analyzed gasoline taking into account the previously measured value of the electrical conductivity of the gasoline poured into the pipeline. As an information parameter, its dielectric permittivity determined from the resonant frequency of oscillations of the capacitive oscillatory circuit, is used. The device for carrying out the method comprises a flow-through capacitive sensor integrated in the vehicle gasoline line, and a temperature sensor mounted in the capacitive sensor housing. Herewith a differential circuit is used to switch on two identical silicon-diodes generators, as well as the measurement of the temperature and dielectric constant is used immediately before feeding it into the exhaust gasoline system of an oil refinery, a BC, a gas station or into a running engine, and shielding the signal wires is used to reduce the effect of electromagnetic interference.

EFFECT: increasing the accuracy of measurement and efficiency, the ease of analyzing gasoline.

6 cl, 3 dwg