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Open Accesshttps://doi.org/10.5768/jao202243.0103006
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Cite Journal: Journal of Applied Optics |  Publication Date: Jan 1, 2022 |
 License type: cc-by |
为了研究可调谐半导体激光吸收光谱(TDLAS)技术在气体检测过程中，正压条件下的相邻谱线影响问题，建立基于积分吸光度的压力测量模型。以CO<sub>2</sub>为研究对象，在室温、高纯度条件下进行了范围为（1～2）atm的压力测量仿真和实验。实验结果显示：随着压力的增大，相邻吸收谱线相互影响程度加剧，吸光度曲线偏离零基线的程度加大；实验测量结果在1.25 atm处最大相对偏差为4.94%，在2.00 atm处最小相对偏差为0.73%，平均相对偏差为3%。
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