Study on the Optical Fiber Methane Gas Sensor

摘要：

Based on discussing factors that influence the sensitivity of detecting system in detail, a method for methane gas sensing using second-harmonic technique and ring-down technique is demonstrated. A sensitivity of 70 ppb/m has been achieved with this method. The concentration of other gas in the atmosphere and industry pollution can be gained by using the same method just changing light source and optical apparatus corresponding to the target gas.

关键词： methane second-harmonic technique ring-down cavity

作者: ZHANG Jie CUI Ruixue

作者单位: Electronic Engineering Department, North China Institute of Astronautic Engineering, Langfang , 065000, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）