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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >An improved fast-response vacuum-UV resonance fluorescence CO instrument
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An improved fast-response vacuum-UV resonance fluorescence CO instrument

机译:一种改进的快速响应真空-紫外共振荧光CO仪器

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摘要

The fast-response resonance fluorescence instrument for the airborne measurement of carbon monoxide described by Gerbig et al. [1996] was modified by implementing an improved optical filter with more efficient optics and an optimized resonance lamp. Besides reductions in size and weight, the new instrument achieves a sensitivity 10 times higher, a lower background (65 ppb compared with 250 ppb), and a faster time response (<0.1s) than the original instrument. The precision is +- 1.5 ppb at an atmospheric mixing ratio of 100 ppb CO, and the detection limit is 3 ppb (2#sigma#) for an integration time of 1 s. First results from the North Atlantic Regional Aerosol Characterization Experiment (ACE-2) campaign during July 1997, when the new instrument was deployed aboard the U.K. Meteorological Office C-130 aircraft, are used to demonstrate the performance of the new instrument.
机译:Gerbig等人描述的用于空气中一氧化碳测量的快速响应共振荧光仪。通过改进的滤光器,采用更有效的光学元件和优化的共振灯,改进了[1996]。除了减小尺寸和重量之外,新仪器还具有比原始仪器高10倍的灵敏度,较低的背景(65 ppb与250 ppb相比)和更快的时间响应(<0.1s)。在100 ppb CO的大气混合比下,精度为±1.5 ppb,积分时间为1 s的检测极限为3 ppb(2#sigma#)。 1997年7月北大西洋区域气溶胶表征实验(ACE-2)活动的第一批结果被用来证明新仪器的性能,当时该仪器被部署在英国气象局C-130飞机上。

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