OPTICAL-ELECTRONIC SPECTRAL GAS ANALYZER Russian patent published in 2007 - IPC G01N21/61 

FIELD: gas analysis, possible use for determining qualitative and quantitative composition of gas mixtures resulting from life activity of organisms or excreted during operation of various devices, internal combustion engines, and also for controlling quality of perfume goods.

SUBSTANCE: gas analyzer contains supply block, connected to output of which are lighting element, fast photo-shutter of input beam, device for blowing optical trough with cleaning gas, device for forcing gas mixture being analyzed into optical trough, fast photo-shutter of output beam, photo-detector, made in form of block of detectors, multi-channel amplifier, and to input control block is connected through digital-analog converter. Lighting element, fast photo-shutter of input beam, optical trough with inbuilt concave reflecting grid are positioned on same optical axis, while optical trough with inbuilt reflecting grid and transparent outlet window, fast photo-shutter of output beam and photo-detector are positioned on a different optical axis along the direction of exiting beam. Connected sequentially to trough are fast photo-shutter of output beam, photo-detector, multi-channel amplifier, analog-digital converter, control block, for example a computer, digital-analog converter.

EFFECT: increased precision and sensitivity, because qualitative composition of gas mixture is determined on basis of radiation spectrums.

1 dwg