基于二次-四次谐波联用的免标定波长调制激光吸收光谱方法

王一红, 周宾^*, 赵荣, 汪步斌

Calibration-Free Wavelength Modulation Spectroscopy for Gas Properties Measuring Basedon 2^nd and 4^th Harmonics

WANG Yi-hong, ZHOU Bin^*, ZHAO Rong, WANG Bu-bin

甲烷吸收光谱仿真( x =2%, P =1 atm, L =20 cm, T =296 K) (a): 吸收谱线位置; (b): 吸收光谱的Voigt线型拟合; (c): 拟合残差