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高灵敏NO2气体光纤传感器是基于方块菁染料的荧光强度在微量NO2气体中发生猝灭特性。通过实验得到SQ3块菁染料在不同NO2气体浓度下的荧光光谱特性。
The highly sensitive NO2 gas optical fiber sensor is based on the quenching property of the fluorescence intensity of the cyanine dye in a trace amount of NO2 gas. The fluorescence spectra of SQ3 cyanine dye at different NO2 gas concentrations were obtained by experiments.