DEVICE TO MEASURE VOLUME CONCENTRATION OF GAS BUBBLES IN LIQUID Russian patent published in 2013 - IPC G01N27/02 

FIELD: measurement equipment.

SUBSTANCE: device is proposed to measure volume concentration of gas bubbles in liquid, comprising a generator of a high-frequency signal, an impedance dipole, a capacitance sensor of gas bubbles availability in liquid, comprising at least one pair - the first and second electrodes of a conducting material installed at the specified distance d from each other in a holder made of a dielectric material, a semiconductor diode, a low pass filter (LPF), a unit of potential shift and a unit of output signal generation, besides, the generator of the high-frequency signal is connected with the serially connected impedance dipole, the semiconductor diode, the LPF, the unit of potential shift and the unit of output signal generation, and the output from the first electrode is connected to the common output of the impedance dipole and the semiconductor diode, the output from the second electrode - to an earth bus.

EFFECT: possibility to measure gas saturation of an open volume of water medium in real time, higher sensitivity, linearity and resolution capacity, reduced cost of realisation and higher reliability and functional flexibility of a device for measurement of volume concentration of gas bubbles in liquid.

10 cl, 3 dwg