一种基于WMS-2f/1ff的多线拟合法,用于测量基于WMS-2f/1f的乙烯度
W F Wang1,2, B Yang1,2, H F Liu1,2
1School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China.
Scientific reports
|September 15, 2023
概括
一种新的多线装配方法准确地测量了乙烯 (C2H4) 气体,这是煤炭自燃的关键指标. 与传统方法相比,这种技术显著减少了测量误差,提高了矿山安全.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 分析化学 分析化学
- 频谱学是一种光谱学.
背景情况:
- 煤炭自燃在深层采矿中构成重大风险,影响安全和可持续性.
- 乙烯 (C2H4) 是煤炭自燃的关键早期预警指标.
- 在近红外光谱学中,通过与甲 (CH4) 吸收线的交叉干扰来挑战C2H4的准确检测.
研究的目的:
- 开发和验证一种用于精确校准C2H4度的新型多线装配方法.
- 为了克服CH4和C2H4吸收线之间的光谱干扰.
- 为了提高可调节二极管激光吸收光谱 (TDLAS) 监测煤炭自燃的准确性.
主要方法:
- 使用可调节二极管激光吸收光谱 (TDLAS) 结合波长调制光谱 (WMS).
- 采用多线拟合算法来分析测量和模拟的WMS-2f/1f信号.
- 使用Environics2000自动标准气体分配器对高精度气体混合物进行校准的C2H4度.
主要成果:
- 多线装配方法在C2H4度测量中实现了2.40%的最大相对误差.
- 这意味着与传统的2f峰值测量方法相比,误差减少了54%.
- 拟议的方法有效地减轻了CH4和C2H4吸收线之间的交叉干扰问题.
结论:
- 多行配合算法在光谱干扰的情况下,对于精确的C2H4度逆转非常有效.
- 这一进步显著提高了TDLAS技术的可靠性,用于煤炭自燃的早期预警.
- 该研究为深层煤矿中关键指标气体的实时在线监测提供了强大的解决方案.
更多相关视频
10:29Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
Published on: March 21, 2016
12.4K
08:56Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry
Published on: November 22, 2024
681
相关概念视频
01:062D NMR: Homonuclear Correlation Spectroscopy (COSY)
Homonuclear correlation spectroscopy, or COSY, is a 2-dimensional NMR technique that provides information about coupled protons. Typically, the geminal and vicinal coupling are observed. For example, consider the COSY spectrum of ethyl acetate, where its 1D proton NMR spectrum is plotted along the vertical and horizontal axes with their corresponding chemical shift scale. Three spots on the diagonal corresponding to the three peaks in the 1D proton spectrum are called diagonal peaks. The COSY...
01:192D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...