Compact Open-Path Sensor for Fast Measurements of CO2 and H2O using Scanned-Wavelength Modulation Spectroscopy with 1f-Phase Method

doi:10.3390/s20071910

CIOMP OpenIR

	Compact Open-Path Sensor for Fast Measurements of CO2 and H2O using Scanned-Wavelength Modulation Spectroscopy with 1f-Phase Method
	X. Li,F. Yuan,M. Hu,B. Chen,Y. B. He,C. G. Yang,L. F. Shi and R. F. Kan
	2020
发表期刊	Sensors
卷号	20 期号:7 页码:15
摘要	We report here the development of a compact, open-path CO2 and H2O sensor based on the newly introduced scanned-wavelength modulation spectroscopy with the first harmonic phase angle (scanned-WMS-theta 1f) method for high-sensitivity, high temporal resolution, ground-based measurements. The considerable advantage of the sensor, compared with existing commercial ones, lies in its fast response of 500 Hz that makes this instrument ideal for resolving details of high-frequency turbulent motion in exceptionally dynamic coastal regions. The good agreement with a commercial nondispersive infrared analyzer supports the utility and accuracy of the sensor. Allan variance analysis shows that the concentration measurement sensitivities can reach 62 ppb CO2 in 0.06 s and 0.89 ppm H2O vapor in 0.26 s averaging time. Autonomous field operation for 15-day continuous measurements of greenhouse gases (CO2 /H2O) was performed on a shore-based monitoring tower in Daya Bay, demonstrating the sensor's long-term performance. The capability for high-quality fast turbulent atmospheric gas observations allow the potential for better characterization of oceanographic processes.
DOI	10.3390/s20071910
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收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64370
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Li,F. Yuan,M. Hu,B. Chen,Y. B. He,C. G. Yang,L. F. Shi and R. F. Kan. Compact Open-Path Sensor for Fast Measurements of CO2 and H2O using Scanned-Wavelength Modulation Spectroscopy with 1f-Phase Method[J]. Sensors,2020,20(7):15.
APA	X. Li,F. Yuan,M. Hu,B. Chen,Y. B. He,C. G. Yang,L. F. Shi and R. F. Kan.(2020).Compact Open-Path Sensor for Fast Measurements of CO2 and H2O using Scanned-Wavelength Modulation Spectroscopy with 1f-Phase Method.Sensors,20(7),15.
MLA	X. Li,F. Yuan,M. Hu,B. Chen,Y. B. He,C. G. Yang,L. F. Shi and R. F. Kan."Compact Open-Path Sensor for Fast Measurements of CO2 and H2O using Scanned-Wavelength Modulation Spectroscopy with 1f-Phase Method".Sensors 20.7(2020):15.

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