Yu WANG, Guishi WANG, Jun LI, Xianke ZHANG, Xiaoming GAO. Research progress of measuring ammonia emission using infrared spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(4): 391

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- Journal of Atmospheric and Environmental Optics
- Vol. 19, Issue 4, 391 (2024)
![The mid-infrared sensor platform based on amplitude modulated photo-acoustic spectroscopy for atmospheric NH3 detection[24]](/richHtml/dqyhjgx/2024/19/4/391/img_01.jpg)
Fig. 1. The mid-infrared sensor platform based on amplitude modulated photo-acoustic spectroscopy for atmospheric NH3 detection[24]
![Schematic diagram of laser control and signal processing part (a) and open path and closed path (b) for atmospheric trace gas measurement system [26]](/richHtml/dqyhjgx/2024/19/4/391/img_02.jpg)
Fig. 2. Schematic diagram of laser control and signal processing part (a) and open path and closed path (b) for atmospheric trace gas measurement system [26]
![Diagram of optical design entity (a) and complete structure fully non-cryogenic of the instrument (b) for NH3 measurement[27]](/Images/icon/loading.gif)
Fig. 3. Diagram of optical design entity (a) and complete structure fully non-cryogenic of the instrument (b) for NH3 measurement[27]
![System construction of long range NH3 online spectral detection system[30]](/Images/icon/loading.gif)
Fig. 4. System construction of long range NH3 online spectral detection system[30]
![The bLS method for estimating tracer emission rate (QbLS)[30]](/Images/icon/loading.gif)
Fig. 5. The bLS method for estimating tracer emission rate (QbLS)[30]
![Locations of experimental pen and instruments in this study[17]](/Images/icon/loading.gif)
Fig. 6. Locations of experimental pen and instruments in this study[17]
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Table 1. Summary of NH3 optical measurement technologies

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