光学学报, 2020, 40 (12): 1201003, 网络出版: 2020-06-03
基于热解腔衰荡光谱技术对二氧化氮和有机硝酸酯同步测量研究 
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Simultaneous Measurement of Nitrogen Dioxide and Organic Nitrate Based on Thermal Dissociation Cavity Ring-Down Spectroscopy
图 & 表
图 2. NO2、O3、水蒸气的吸收截面和二极管激光光谱。(a) O3和水蒸气的吸收截面; (b) NO2的吸收截面和二极管激光光谱
Fig. 2. Cross section of NO2, O3, water vapour and diode laser spectrum. (a) Cross section of O3 and water vapour; (b) cross section of NO2 and diode laser spectrum
图 4. 1 L/min流速下石英玻璃管内的温度分布
Fig. 4. Temperature distribution in quartz glass tube at flow rate of 1 L/min
图 6. 双腔一致性对比结果。(a)两腔NO2测量的时间浓度序列; (b)两腔NO2测量的相关性
Fig. 6. Comparison of dual-channel consistency. (a) Time series of NO2 concentration between the two channels; (b) correlation plot between the data from two channels
图 7. CRDS系统探测限。 (a) CRDS系统在仅通入零空气时的NO2浓度变化;(b) CRDS系统中NO2浓度的Allan偏差图,其中最小值为最佳积分时间
Fig. 7. Detection limit of CRDS system. (a) Continuous of NO2 concentration sampled only under zero air; (b) Allan deviation plot for NO2 concentration in CRDS system, in which the minimum value equals the optimum integration time
图 8. CRDS与LP-DOAS对比结果。 (a) CRDS与LP-DOAS之间NO2测量的时间序列; (b) CRDS与LP-DOAS之间NO2测量的相关性
Fig. 8. Comparison of CRDS and LP-DOAS. (a) Time series of NO2 concentration sampled by CRDS and LP-DOAS; (b) correlation plot between the data from CRDS and LP-DOAS
图 9. 2019-10-16至2019-10-23 ON和NO2浓度的时间序列
Fig. 9. Time series of ON and NO2 concentration during October 16 to 23, 2019
林川, 胡仁志, 谢品华, 吴盛阳, 童金钊, 李治艳, 王凤阳, 王怡慧. 基于热解腔衰荡光谱技术对二氧化氮和有机硝酸酯同步测量研究[J]. 光学学报, 2020, 40(12): 1201003. Chuan Lin, Renzhi Hu, Pinhua Xie, Shengyang Wu, Jinzhao Tong, Zhiyan Li, Fengyang Wang, Yihui Wang. Simultaneous Measurement of Nitrogen Dioxide and Organic Nitrate Based on Thermal Dissociation Cavity Ring-Down Spectroscopy[J]. Acta Optica Sinica, 2020, 40(12): 1201003.
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