GAS ANALYSER Russian patent published in 2008 - IPC G01N27/64 

FIELD: physics; measurements.

SUBSTANCE: proposed gas analyser comprises a gas line (1) in which there is a photo-ionisation detector (2) and a gas flow activator (3), an adsorber-absorber (13) and gas line (8), connected to the source of the analysed gas, in which, according to the invention, there are at least two containers (4) and (10) whose volume is calibrated. One of the containers (4) is put inside gas line (1), and the other (10) is put inside gas line (8). The device also contains another gas flow activator (9), which is in gas line (8), and controlled gates (11) and (12) for stopping the analysed gas from flowing into container (10). The inlets and outlets of container (10) and the adsorber-absorber (13) are joined to gas line (1) through flow switch (14), which allows for alternate switching of container (10) and adsober-absorber (13) to gas line (1). The invention provides for widening the range of measurements, mainly measurement of elevated concentrations of the measured substances (up to several percentages) through controlled dilution.

EFFECT: wide range of measurements, mainly measurement of elevated concentrations of the measured substances (up to several percentages) through controlled dilution.

3 cl, 3 dwg