DEVICE FOR REMOTE SELECTION OF AIR SAMPLE FOR GAS ANALYSIS INSTRUMENTS (VERSIONS) Russian patent published in 2017 - IPC H01J49/40 

FIELD: measuring equipment.

SUBSTANCE: device for remote selection of air sample includes an air intake housing, an attachment for forming air flows with nozzles on its inner surface, an inner annular space between the housing and an attachment for gas pumping, a tube located inside the housing and an attachment allowing entry into the analytical chamber of the device, an analytical chamber of the device, a pump which ensures suction of the air containing the target substance, and simultaneously air injection into the inner annular cavity, a heater (optionally) for preheating the gas injected into the gas pumping cavity by the pump, pipelines connecting the device for selection of air sample to the pump. The invention is applicable to the detection of trace amounts of explosive, poisonous, narcotic substances, monitoring of industrial pollution in the atmosphere, control of food products by evolved evaporation, medical diagnosis of exhaled air composition.

EFFECT: improved efficiency of sample selection, simplified design and reduced energy consumption.

2 cl, 4 dwg