DEVICE FOR DETERMINATION OF ELECTRICAL CONDUCTIVITY OF LIQUIDS Russian patent published in 2015 - IPC G01N27/06 

FIELD: measurement technology.

SUBSTANCE: invention is used for determination of electrical conductivity of liquids. The essence of the invention consists in that the device contains the conductometric sensor of contact type, the electrode 1 of the sensor consists of several segments 2, 3 and 4, and the electrode 5 is designed as solid and it is common for the segments 2, 3 and 4. The device also contains a functional generator 6, comprising the integrator 7, Schmitt trigger 8 and amplifier 9, and temperature sensor 15, microprocessor 11, switches 10, 14. The first, second and third outputs of the circuit switch 14 are connected to the segments 2, 3 and 4.

EFFECT: expanded measurement range, higher accuracy of measurement of electric conductivity of liquids.

5 cl, 1 dwg