COULOMETRIC HYGROMETER Russian patent published in 2022 - IPC G01N25/66 

FIELD: analytical instrument making.

SUBSTANCE: invention relates to the field of analytical instrument making; it can be used in coulometric hygrometers intended for measurement of a dew-point temperature (DPT_w) in natural gas by water. The coulometric hygrometer having a pneumatic circuit consists of alternating pneumatic resistance, a measurement unit, a coulometric cell, an absolute pressure meter with an electrical output, a gas pressure stabilizer, a gas flow stabilizer. The coulometric cell is sequentially connected to the gas pressure stabilizer and the gas flow stabilizer, while the hygrometer is made with the possibility of supply of analyzed gas through a fitting to the coulometric cell made with the possibility of supply of voltage from a direct current source applied to electrodes of the coulometric cell, located in the measurement unit.

EFFECT: increase in the accuracy of measurements.

1 cl, 2 dwg