基于光谱吸收原理的光纤甲烷传感器  

Methane Optic Fiber Sensor Based on Infrared Absorption Principle

作　　者：贺玉凯[1,2] 王汝琳[1] 张丽[1] 王建[1] 吴久晏[1] 

机构地区：[1]中国矿业大学(北京校区) [2]渤海大学,辽宁锦州121000

出　　处：《煤矿机电》2007年第2期41-44,共4页Colliery Mechanical & Electrical Technology

摘　　要：提出一种基于红外吸收原理光纤甲烷传感器的检测方法,利用差分吸收法消除光源不稳定及光电器件的热零点漂移、零点漂移对测量准确度的影响。实验结果表明系统性能较为稳定,灵敏度较高,测量范围宽,重复性较好,适用于煤矿井下瓦斯检测。A detection method based on infrared absorption principle is presented. In order to eliminate the influence of instability of light source, thermal zero shift and zero shift of photoelectric device on the precision, the differential absorption is used. The experimental results show that the system has steady performance, high sensitivity, wide measurement range, good repeatability, thus it is fit for detecting methane gas in coal mine underground.

关 键 词：甲烷传感器 光谱吸收 光纤 差分检测 

分 类 号：TD712.55[矿业工程—矿井通风与安全]