| 摘要 |
Method for determination of gas concentration prescribes measurement of difference of luminous fluxes that from source of radiation go through working cuvette that is performed by photo-receiver and by changes of those one determines concentration of gas. Spatially separated luminous fluxes are formed with not less than two sources of radiation in different time periods, with determination with temperature indicator, working range of temperatures is set with not less than two temperature intervals, working interval of temperatures is determined by temperature indicator, at that sources of radiation include not less than two active elements with p-n transitions located in heat-conductive basis, those emit in maxima at wavelength matched with wavelength in maximum of band of natural absorption for analyzed gas for each temperature interval-respectively, additional source of radiation has not less that two active elements with p-n transitions located on heat-conductive basis, those radiate in maxima at wavelength out of the band of natural absorption for gas being analyzed in working temperature range. |
