基于光腔衰荡光谱技术的痕量甲烷检测
宋绍漫1,2, 颜昌翔1,3,*

Trace Methane Detection Based on Cavity Ring-Down Spectroscopy
SONG Shao-man1,2, YAN Chang-xiang1,3,*
浓度(体积分数)为510×10-9的CH4的吸收系数随频率的变化