Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3712(2021)
A Near-Infrared TDLAS Online Detection Device for Dissolved Gas in Transformer Oil
Figures & Tables(7)
Fig. 2. The amplitude of the second harmonic of the characteristic gas
Fig. 3. The fitting curve of the peak and valley value of the second harmonic signal of the characteristic gas and the corresponding coocentration
Table 1. Absorption lines of characteristic gases
View tableView in ArticleTable 1. Absorption lines of characteristic gases
气体 吸收谱线/nm 线强/(cm·mol-1) CO2 1 579.57 1.51×10-23 CO 1 579.74 1.48×10-23 CH4 1 653.72 1.34×10-21 C2H4 1 626.8 6.47×10-21 C2H6 1 653.32 1.436×10-23 C2H2 1 530.37 1.239×10-20
Table 2. Characteristic gas real-time detection data and control data
View tableView in ArticleTable 2. Characteristic gas real-time detection data and control data
组分 实验组1/(μL·L-1) 实验组2/(μL·L-1) 实验组3/(μL·L-1) TDLAS 气相色谱 误差 TDLAS 气相色谱 误差 TDLAS 气相色谱 误差 CO 410.85 411.33 -0.48 409.22 407.50 1.72 454.86 455.60 -0.74 CO2 428.89 447.55 -18.66 465.16 478.70 -13.54 490.00 479.00 11.00 CH4 5.92 7.01 -1.09 8.45 8.40 0.05 5.70 5.40 0.30 C2H2 1.14 1.93 -0.79 1.09 1.00 0.09 1.16 1.10 0.06 C2H4 30.86 36.60 -5.74 52.46 49.30 3.16 34.43 35.90 -1.47 C2H6 12.62 16.37 -3.75 13.20 11.30 1.90 10.70 9.20 1.50
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Yang CHEN, Jing-min DAI, Zhen-tao WANG, Zong-ju YANG. A Near-Infrared TDLAS Online Detection Device for Dissolved Gas in Transformer Oil[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3712
Paper Information
Category: Research Articles
Received: Nov. 2, 2020
Accepted: --
Published Online: Dec. 17, 2021
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