Feng-Yang Wang, Ren-Zhi Hu, Pin-Hua Xie, Yi-Hui Wang, Hao Chen, Guo-Xian Zhang, Wen-Qing Liu. Calibration source for OH radical based on synchronous photolysis [J]. Acta Physica Sinica, 2020, 69(9): 090701-1
- Acta Physica Sinica
- Vol. 69, Issue 9, 090701-1 (2020)
Fig. 1. Schematic diagram of laminar distribution in the flow tube
Fig. 2. System diagram of synchronous photolysis of H2O and O2.
Fig. 3. Schematic diagram of O3-CRDS.
Fig. 4. (a) When the instrument only samples zero air, the black point represents the average data of 1 s, and the red point represents the average data of 30 s; (b) Allan variance of ozone concentration.
Fig. 5. Measurement results of ozone concentration distribution factor P .
Fig. 6. (a) Light intensity at 185 nm as a function of N2O concentration; (b) relationship between light intensity and ozone concentration.
Fig. 7. Concentration of OH radicals produced by the calibration device corresponds to the fluorescence count of LIF-OH system.
Fig. 8. Calibration results of LIF-OH instrument by OH radical calibration source under field conditions.
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Table 1.
Uncertainty of OH radical calibration source.
OH自由基标定装置不确定度
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