应用 | 优势 |
Ø 检测各种大气痕量气体，如:甲烷、*、一氧化氮、二氧化氮、一氧化碳、二氧化碳、甲醛、甲酸、乙烯、乙炔、羰基硫化物、、氨等。 | l 红外激光痕量气体监视器与电子和光学器，十分紧凑，体积非常小 |
Ø N2O监测仪：同时监测N2O、水汽、CO、CO2或CH4。 | l 无需标定气体，检测痕量气体浓度 |
Ø CO2、CH4和N2O同位素监测 | l 快速时间响应 |
Ø 焚烧监测和表征 | l 不受其他大气气体或水蒸气的干扰 |
Ø 源/降表征的同位素监测 | l 总控设计，无人值守操作 |
Ø 对N2O和其他痕量气体的涡流协方差测量。 | l 可以在野外和移动平台上进行监测 |
Ø 快速响应羽流的研究 | l 光路长度达76米 |
主流仪器
采用中红外激光可获得更高的精度和精度
单激光痕量气体监测仪的规格：
尺寸：440 mm x 660 mm x 6U (267mm) (W x D x H) (core instrument)
重量：35 kg (core instrument)
供电：250 W, 120/240 V, 50/60 Hz (without pump)
文献
Nelson, D.D. et al., Optics Let. 31, 2012-2014, 2006.
McManus, J.B. et al., Applied Physics B, DOI: 10.1007/s00340-006-2407-7 (2006).
McManus, J.B., M.S. Zahniser, D.D. Nelson, L.R. Williams, and C.E. Kolb, Infrared laser spectrometer with balanced absorption for measurements of isotopic ratios of carbon gases,, Spectrochim. Acta A, 58, 2465-2479, (2002).
McManus, J.B., D.D. Nelson, J.H. Shorter, R. Jiménez, S. Herndon, S. Saleska, and M.S. Zahniser, A high precision pulsed QCL spectrometer for measurements of stable isotopes of carbon dioxide, J. Modern Optics, 52, 2309-2321 (2005).
Saleska, SR; J. Shorter, S. Herndon, R. Jimenéz, B. McManus, D. Nelson, M. Zahniser, What are the instrumentation requirements for measuring the isotopic composition of net ecosystem exchange of CO2 using eddy covariance methods? Isotopes in Environmental and Health Studies, 42 (1), 117 (2006).
Nelson, D.D., J. B. McManus, S. C. Herndon, M. S. Zahniser, B. Tuzson and L. Emmenegger, New Method for Isotopic Ratio Measurements of Atmospheric Carbon Dioxide Using a 4.3 μm Pulsed Quantum Cascade Laser, Appl. Phys. B 90, 301–309 (2008).
Tuzson, B , J. Mohn, M. J. Zeeman, R. A. Werner, W. Eugster, M. S. Zahniser, D. D. Nelson,
J. B. McManus, L. Emmenegger, High precision and continuous field measurements of δ13C and
δ18O in carbon dioxide with a cryogen-free QCLAS, Appl. Phys. B 92, 451-458 (2008).
