DEVICE FOR THE LIQUID MEDIA SPECIFIC ELECTRICAL CONDUCTIVITY MEASUREMENT Russian patent published in 2018 - IPC G01R27/22 

FIELD: measuring equipment.

SUBSTANCE: device is designed to measure the seawater specific electrical conductivity directly in the medium and can be used for measurement in other liquids. Summary of invention is in that the liquid media specific electrical conductivity measuring device contains a current source, voltage meter, sensor with a solid dielectric casing in the form of a cup and two current electrodes, at that, the sensor frame includes a controlled current source, voltage and resistance meters, a power supply source for electromagnets and a microprocessor, the liquid specific conductivity is determined by the formula

where I is the current through the current electrodes known value, U is the voltage between the potential electrodes measured value, α is the cup linear expansion temperature coefficient with the temperature increase for θ from zero one, γ is the cup measuring base linear compression coefficient with external pressure increase for P from zero one, K is the sensor cell "geometric constant" at zero temperature and pressure.

EFFECT: technical result is the improvement in the measurement accuracy in the medium particular point.

1 cl, 2 dwg