GAS ANALYZER WITH AN OPEN INLET ON THE BASIS OF PIEZOSENSORS Russian patent published in 2007 - IPC G01N27/12 

FIELD: the invention refers to the technique of carrying out analyses of gas mediums containing volatile organic and inorganic compounds.

SUBSTANCE: the gas analyzer with an open input on the basis of piezosensors has a body, inside which there are piezosensors with sensitive film coatings for fixation the main components of the gas mixture, devices for excitation of vibrations and fixing the signals of the piezosensors. The body is fulfilled in the shape of a cylinder with 5-10 cm in height or of a truncated cone with 20-25 cm in height. Along the circle and in the center of the cover there are holders for matrix of 1-16 piezosensors with various film coatings of sorbents. The other side of the body does not have a bottom and is limited by a resinous or a plastic rim for better cohesion with the surface of the stand and preservation insulation inside the body.

EFFECT: provides possibility to analyze gas probes of different compositions and the level of concentration of volatile components including the level of micro concentrations.

3 dwg, 1 tbl