INFRARED ABSORPTION GAS ANALYZER Russian patent published in 2007 - IPC G01N21/61 

FIELD: measuring technique.

SUBSTANCE: gas analyzer can be used for determining content of combustible and toxic gases. Two optical axes are used in gas analyzer, in cross point of which axes the IR-radiation mirror splitter is mounted. IR-radiation source and working chamber with internal mirror reflection are placed along the same optical axis; one more spherical reflector is mounted along the other axis. Seal, which overlaps both optical axes, is made in form of non-transparent disc with special profiled window. Seal is mounted at specific angle to mentioned optical axes in front of mirror splitter of IR-radiation at opposite side to IR-radiation source and receiver.

EFFECT: improved threshold sensitivity within wide range of working temperatures, humidity and dustiness; elimination of dependence of results of measurement on influence of environment.

2 cl, 2 dwg