METHOD OF AIR MOISTURE CONTENT DETERMINATION Russian patent published in 2014 - IPC G01N25/56 

FIELD: instrumentation.

SUBSTANCE: proposed method consists in filling measuring vessel of known volume with dry air and weighing it. Then, measuring vessel is filled with air and weighed to record air temperature and pressure using measured magnitudes. Then, air moisture content d is defined by the formula: g/kg dry, where m₁ is the weight of measuring vessel with dry air, g; m₂ is the weight of measuring vessel with analysed air, g; V is measuring vessel volume, liter; P_ap is analysed air barometric pressure, mm Hg; T_at is analysed air temperature, °C; g_n is specific weight of steam, g/l (g_n = 0.803 g/l); g_c is specific weight of dry air, g/l (g_c= 1.2928 g/l); P₀ is normal pressure, mm Hg (P₀=760 mm Hg); T₀ is normal temperature °C(T₀=273°C).

EFFECT: lower costs, higher precision and reliability.

1 dwg