METHOD FOR DETERMINING THE VOLUME FRACTION OF HYDROGEN IN GASES AND APPARATUS IMPLEMENTING SAID METHOD Russian patent published in 2021 - IPC G01N27/404 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring equipment, in particular, to an apparatus and method for determining the volume fraction of hydrogen in gases. The apparatus for determining the volume fraction of hydrogen in gases comprises a hydrogen analyser consisting of an electrochemical hydrogen sensor placed in a flow cell and connected to a converter unit converting the sensor current into an analyser output signal proportional to the partial hydrogen pressure, wherein the apparatus comprises a hydrogen generator connected with a residual oxygen absorber, the output whereof is connected with one of the inputs of the flow switch, the second input whereof is the input of the entire apparatus and the output is connected with the input of the apparatus for aligning the temperature and humidity of the analysed and reference gases, the output whereof is connected to the input of the a flow cell with an electrochemical hydrogen sensor, wherein the output of the converter unit is connected with the analysis unit and the control inputs of the flow switch and the analysis unit are connected with the corresponding outputs of the control unit.

EFFECT: possibility of determining the hydrogen content in a multicomponent gaseous mixture with a relative error of 0.15% or less.

5 cl, 2 dwg