Research on noise analysis and compensation of gas detection based on TDLAS

JIAO Xiao-min; SHANG Li-ping

doi:10.13873/j.1000-97872008.03.012

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Research on noise analysis and compensation of gas detection based on TDLAS

更新时间：2025-09-11

- Research on noise analysis and compensation of gas detection based on TDLAS
- Issue 3, Pages: 70-72+76(2008)
- 作者机构：
  
  1. 西南科技大学信息控制工程专业
  2. 西南科技大学信息控制工程专业,四川,绵阳,621010
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872008.03.012
  CLC： TN248
- Published：2008
- 稿件说明：
移动端阅览
[1]矫晓敏,尚丽平.应用TDLAS探测气体的误差分析与补偿研究[J].传感器与微系统,2008(03):70-72+76.

JIAO Xiao-min, SHANG Li-ping. Research on noise analysis and compensation of gas detection based on TDLAS[J]. 2008, (3): 70-72+76.
[1]矫晓敏,尚丽平.应用TDLAS探测气体的误差分析与补偿研究[J].传感器与微系统,2008(03):70-72+76. DOI： 10.13873/j.1000-97872008.03.012.

JIAO Xiao-min, SHANG Li-ping. Research on noise analysis and compensation of gas detection based on TDLAS[J]. 2008, (3): 70-72+76. DOI： 10.13873/j.1000-97872008.03.012.

摘要

针对基于可调谐二极管激光吸收光谱技术（TDLAS）的气体体积分数检测系统

介绍了TDLAS探测气体体积分数的原理;详细分析了测量误差的影响因素;研究了将所测得的吸收谱线扣除背景谱线

对采集到的二次谐波信号采用最小二乘波形拟合的信号处理方法。这种方法可以有效地抑制噪声干扰

提高探测灵敏度。

Abstract

The principle of tunable diode laser absorption spectroscopy（TDLAS）is presented.The measuring volume fraction error reason on the gas volume fraction measurement system is analyzed in detail.The signal processing method of the liner least-squares fitting used to deal with second harmonic signal

which come from the absorption spectroscopy deducting background spectroscopy is researched.The method can effectively restrain noise and improve sensitivity.

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references

利用可调谐半导体激光吸收光谱技术对气体浓度的测量 [J]. 李宁,王飞,严建华,马增益,岑可法. 中国电机工程学报 . 2005(15)

基于可调谐二极管激光吸收光谱技术在线监测机动车尾气排放CO和CO 2 的方法[J]. 涂兴华,刘文清,董凤忠,张玉钧,王铁栋,齐锋,刘建国,谢品华. 高技术通讯. 2006 (09)

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