NITROGEN GAS ANALYZER IN NITROGEN-ARGON MIXTURE Russian patent published in 2019 - IPC G01N21/67 

FIELD: instrument engineering.

SUBSTANCE: invention relates to analytical instrument-making and is intended for determining concentration of nitrogen in a nitrogen-argon mixture. Gas analyser intended for measurement of nitrogen concentration in a nitrogen-argon mixture consists of GAS INLET nozzle, pressure stabilizer "after itself", adapter T-bend, constant pneumatic resistance, BYPASS union, pressure pre-pressure stabilizer, discharge chamber, constant air resistance, gas flow indicator, GAS OUTLET socket, measurement unit, wherein adjustment conditions – pressure and flow rate in discharge chamber are set by means of differential pressure stabilizer.

EFFECT: technical result is an increase in the adjustment and calibration interval.

1 cl, 2 dwg