Research on Fitting the Second-harmonic Spectrum of the Coal Mine Gas with Multiple Regression Method

摘要：

It uses the tunable diode laser absorption spectrummethod in the coal mine gas detection which is not only the high precision and the strong selectivity but also the quickly response. The results of experiment indicate that the second-harmonic signal of methane with different density use multiple regression processing and fitting to obtain the density value. It shows that along with the decrease of the density the correlation coefficient reduces more and more, and the lower limit value of density detected is 0.087mg/m 3. As the high sensitivity of the experiment installation it can realize in coal mine that continuous monitoring online and remote sensing.

关键词： The coal mine gas spectral absorption second-harmonic multiple-regression data fitting

作者: Zhou Mengran Li Zhenbi Zhu Zongjiu

作者单位: Anhui university of science and technology,Anhui,China 232001

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）