OPTOELECTRONIC SPECTRAL GAS ANALYSER

摘要

The inventive optoelectronic spectral gas analyser relates to gas analysis engineering and can be used for determining qualitative and quantitative compositions of gas mixtures produced by the life activity of organisms or released by the operation of different devices and internal combustion engines and also for the quality inspection of perfumery products. The inventive optoelectronic spectral gas analyser comprises a power supply unit, lighting element, input beam shutter, optical cell (4), unit (5) for blowing a cleaning gas through the optical cell, device for filling an analysable gas mixture in the optical cell (6), diffraction grating, window, output beam shutter, light detector, amplifier, analog-to-digital converter, control unit and a digital-to-analog converter. The lighting element, input beam shutter, optical cell, unit for blowing a cleaning gas through the optical cell, device for filling an analysable gas mixture in the optical cell, output beam shutter, and the amplifier are connected to the power supply unit output, whereas, the control unit (13), is connected to the input of the power supply unit through the digital-to-analog converter. The lighting element, input beam fast shutter, cell and a concave reflecting diffraction grating incorporated therein are positioned on the same optical axis in the input beam direction, the cell provided with the reflecting diffraction grating and transparent window, output beam shutter and the light detector are positioned on another optical axis in the direction of the output beam. The output beam shutter, light detector amplifier, analog-to-digital converter, control unit, for example a computer and the digital-to-analog converter are in series connected to the cell.