希特勒
光声光谱学
生物医学中的光声成像
一氧化碳
测距
光谱学
吸收光谱法
分析化学(期刊)
激光器
材料科学
可调谐激光吸收光谱技术
可调谐激光器
光电子学
化学
光学
计算机科学
物理
电信
有机化学
波长
量子力学
催化作用
作者
Qu Zhou,Shudi Peng,Qian Wang,Gao‐Lin Wu,Weigen Chen
标识
DOI:10.1109/ichve.2016.7800889
摘要
In this study, a tunable distributed-feedback (DFB) diode laser based photoacoustic spectroscopy (PAS) system was proposed for the purpose of detecting carbon monoxide CO dissolved in power transformer oil. According to the HITRAN 2008 molecular spectroscopic database, a characteristic absorption line at 6380.3012 cm -1 was selected as the molecular spectral line of CO gas. CO detection characteristics, namely the photoacoustic signal versus CO gas pressure ranging from 0.03 to 0.12 MPa, operating temperature ranging from 280 to 330 K, laser power in the range of 3 to 14 mW and CO concentration ranging from 300 to 2000 mL/L were measured and discussed in detail, respectively. All results indicate that the proposed PAS method may be an effective and feasible way for CO gas detection.
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