DEVICE TO DETECT CONCENTRATION OF MIXTURE OF SUBSTANCES Russian patent published in 2014 - IPC G01N22/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment and may be used for high-precision detection of concentration of binary mixtures of various liquid substances pumped along pipelines. The device for detection of concentration of a mixture of substances comprises a wave-guide resonator installed on a measurement section of the pipeline and connected via elements of excitation and oscillations pick-up, accordingly, to a microwave generator and a unit of registration of resonant frequency of electromagnetic oscillations of this resonator. A unit of calculations connected by the output to the indicator is connected to the output of the resonator by the first input, as well as a section of a coaxial line, a connected unit of generation of high-frequency electromagnetic oscillations and registration of resonant frequency of electromagnetic oscillations of the section of the coaxial line, to the output of which the calculations unit is connected by the second input. The waveguide resonator is made in the form of a circular waveguide resonator, open ends of which are installed in the diametral plane of the pipeline and are directed towards to each other, the section of the coaxial line is located coaxially to the circular waveguide resonator, besides, its inner conductor is the external surface of the circular waveguide resonator, and ends of the section of the coaxial line are made as open, each of them contacts with the controlled mixture of substances and is installed in the same plane as the appropriate open end of the circular waveguide resonator.

EFFECT: increased accuracy of measurements.

1 dwg