光学学报, 2020, 40 (5): 0514003, 网络出版: 2020-03-10
近红外激光二氧化碳传感系统的研制及应用 
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Development and Application of Near-Infrared Laser Carbon Dioxide Gas Sensor System
图 & 表
图 2. CO2吸收线的选择。(a) CO2的吸收光谱曲线;(b) CO2和H2O的吸光度,以及工作温度为28 ℃时发射波数和驱动电流的关系曲线
Fig. 2. Selection of CO2 absorption line. (a) Absorption spectra of CO2; (b) absorbance of CO2 and H2O, and driver current as a function of laser emission wavenumber at operation temperature of 28 ℃
图 3. CO2体积分数为2×10-3时调制深度和二次谐波信号幅值的关系曲线
Fig. 3. Relationship between modulation depth and amplitude of second harmonic signal at CO2 volume fraction of 2×10-3
图 4. 不同浓度CO2气体下提取的二次谐波信号幅值与时间的关系图
Fig. 4. Relationship between amplitude of second harmonic signal and measurement time for different CO2 concentration
图 5. 二次谐波信号幅值与气体体积分数的拟合关系曲线
Fig. 5. Fitting curve between volume fraction of gas and amplitude of second harmonic signal
图 6. CO2体积分数为0时反演结果随时间的变化曲线
Fig. 6. Retrieved result versus time when volume fraction of CO2 is 0
表 1三个近红外CO2传感器的性能比较
Table1. Performances of three near-infrared CO2 sensors
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李亚飞, 刘志伟, 张天羽, 郑传涛, 王一丁. 近红外激光二氧化碳传感系统的研制及应用[J]. 光学学报, 2020, 40(5): 0514003. Yafei Li, Zhiwei Liu, Tianyu Zhang, Chuantao Zheng, Yiding Wang. Development and Application of Near-Infrared Laser Carbon Dioxide Gas Sensor System[J]. Acta Optica Sinica, 2020, 40(5): 0514003.
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