差分吸收光谱法多组分浓度反演试验研究

应用新的差分吸收光谱烟气浓度反演算法对SO2、NO、NO2混合气体浓度反演进行了试验研究。与常规反演算法相比,该算法充分考虑了被测对象在不同波段上的差分吸收结构差异,避免了多组分同时反演时使用同一频率进行数字滤波引入的误差。结果表明,该算法能对多组分气体浓度进行快速、准确的反演,误差小于5%。

Experimental research of multi-component gas concentration with DOAS method

The SO2,NO,NO2 gas mixture concentration were inversion calculated with the newly developed Differential Optical Absorption Spectroscopy(DOAS) method.Compared with the conventional inversion calculation method,the new flue gas concentration inversion calculation method fully takes into account the measured object in a different band on the differential absorption of structural differences,while avoiding the multi-component inversion error of digital filters using the same frequency.The results showed that t...