摘要
基于近红外吸收光谱分析技术,采用1.57μm分布反馈式半导体激光器(DFB LD)作为光源,应用二次谐波检测技术,实现了CO气体的浓度检测,与中红外CO气体检测系统相比,系统的灵敏度和稳定性得到很大提高。
Based on analysis of the near infrared spectral absorption, a method for carbon monoxide gas sensing using 1.57μm DFB LD as the light source and second-harmonic technique is demonstrated. Compared with the mid-infrared spectrum absorption, the sensitivity and stability are increased greatly.
出处
《北华航天工业学院学报》
CAS
2007年第5期32-34,共3页
Journal of North China Institute of Aerospace Engineering
基金
北华航天工业学院科研基金项目(KY-2006-09)
关键词
一氧化碳
光纤气体传感器
二次谐波检测
carbon monoxide
optical fiber gas sensor
second-harmonic measurement
