An improved fast-response vacuum-UV resonance fluorescence CO instrument

An improved fast-response vacuum-UV resonance fluorescence CO instrument
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改进的快速响应真空紫外共振荧光CO仪器

DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Dieter Haaks
Dieter Haaks
中科院分区：
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文献类型：
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作者：
C. Gerbig;S. Schmitgen;D. Kley;A. Volz;K. Dewey;Dieter Haaks

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Gerbig等人[1996]描述的用于空气中一氧化碳测量的快速响应共振荧光仪器通过使用具有更有效光学器件的改进滤光器和优化的共振灯进行了修改。除了尺寸和重量的减少外，新仪器的灵敏度提高了10倍，背景更低（65 ppb与250 ppb相比），时间响应更快（<0.1 s）。在100 ppb CO的大气混合比下，精密度为±1.5 ppb，积分时间为1 s时，检出限为3 ppb（2σ）。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，当时新仪器部署在英国气象局的C-130飞机，被用来演示新仪器的性能。
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 (<0.1 s) 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 (2σ) 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.