Optimization of spectrophone performance for quartz-enhanced photoacoustic spectroscopy
Optimization of spectrophone performance for quartz-enhanced photoacoustic spectroscopy
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DOI：
10.1016/j.snb.2012.08.014
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发表时间：
2012-11-01
影响因子：
8.4
通讯作者：
Ho, Hoi Lut
中科院分区：
文献类型：
--
作者：
Cao, Yingchun;Jin, Wei;Ho, Hoi Lut
本文通过数值模拟研究了声频听器参数，包括工作频率、石英音叉与激发激光束的相对位置、谐振管与音叉之间的间隙以及谐振管的直径和长度对石英增强光声光谱气体传感器性能的影响。建议将一对内径0.2 mm、长5.1 mm的刚性管放置在距开口0.6 mm、距音叉边缘20 μ m处，以达到最佳效果。(C) 2012 Elsevier B.V.版权所有
We numerically investigate the effects of spectrophone parameters, including the operating acoustic frequency, the relative position of the quartz tuning fork and the excitation laser beam, the gap between the resonant tubes and the tuning fork, and the diameter and length of the resonant tubes, on the performance of gas sensors based on quartz-enhanced photoacoustic spectroscopy. A pair of rigid tubes with inner diameter of 0.2 mm and length of 5.1 mm, placed 0.6 mm down from the opening and 20 mu m away from the edge of the tuning fork, is suggested for optimal performance. (C) 2012 Elsevier B.V. All rights reserved.