Journal of Applied Optics, Volume. 43, Issue 6, 1054(2022)
High-precision detection technology of NO concentration based on UV differential-adaptive interference cancellation
Figures & Tables(10)
Table 1. DOD ratio of gas at different concentrations in reference curves
View tableView in ArticleTable 1. DOD ratio of gas at different concentrations in reference curves
DOD SO2浓度值/10−6 10 20 30 40 50 60 70 80 参考曲线1 0.6 0.1 0.1 0.1 0.1 0 0 0 参考曲线2 0 0.1 0.1 0.6 0.1 0.1 0 0 参考曲线3 0 0 0 0.1 0.1 0.1 0.6 0.1
Table 2. Correlation coefficient between calculated value and standard value of NO differential optical thickness in the first group of experiments
View tableView in ArticleTable 2. Correlation coefficient between calculated value and standard value of NO differential optical thickness in the first group of experiments
标准值（NO/SO2）/10−6 200/10 200/20 200/30 200/40 200/50 200/60 200/70 200/80 相关系数 （参考曲线1） 0.998 0.999 0.997 0.994 0.990 0.984 0.979 0.974 相关系数 （参考曲线2） 0.997 0.997 0.998 0.998 0.996 0.994 0.991 0.986 相关系数 （参考曲线3） 0.993 0.991 0.991 0.993 0.996 0.998 0.997 0.996
Table 3. Calculation results of NO in the second group of experiments
View tableView in ArticleTable 3. Calculation results of NO in the second group of experiments
标准值（NO/SO2）/10−6 100/15 200/40 300/30 300/40 400/10 400/60 500/20 500/40 与标准曲线相关系数 0.992 0.993 0.993 0.995 0.995 0.998 0.995 0.996 反演NO浓度c/10−6 93.35 183.44 294.82 293.55 391.74 387.66 493.75 490.89 相对误差ε/% −6.65 −8.28 −1.73 −2.15 −2.07 −3.09 −1.25 −1.82
Table 4. Calculation results of NO in the second group of experiments
View tableView in ArticleTable 4. Calculation results of NO in the second group of experiments
标准值（NO/SO2）/10−6 600/25 600/35 700/40 700/70 800/45 800/80 1 000/50 1 500/35 与标准曲线相关系数 0.995 0.996 0.997 0.999 0.998 0.998 0.998 0.997 反演NO浓度c/10−6 601.95 597.72 687.06 691.85 781.60 786.69 986.66 1 468.05 相对误差ε/% 0.33 −0.38 −1.85 −1.16 −2.30 −1.66 −1.33 −2.13
Table 5. Calculation results of NO in the second group of experiments
View tableView in ArticleTable 5. Calculation results of NO in the second group of experiments
标准值（NO/SO2）/10−6 1 700/45 1 900/35 2 100/70 2 300/80 2 500/50 2 700/25 2 900/40 3 000/55 相关系数 0.998 0.997 0.999 0.998 0.998 0.997 0.997 0.999 反演NO浓度c/10−6 1 647.89 1 856.46 2 041.95 2 218.30 2 449.08 2 595.23 2 776.82 2 891.79 相对误差ε/% 3.07 2.29 2.76 3.55 2.04 3.88 4.25 3.61
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Qin DENG. High-precision detection technology of NO concentration based on UV differential-adaptive interference cancellation[J]. Journal of Applied Optics, 2022, 43(6): 1054
Paper Information
Category: Research Articles
Received: Jun. 13, 2022
Accepted: --
Published Online: Nov. 18, 2022
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