光纤甲烷气体传感器  

Optical Fiber Methane Gas Sensor

作　　者：郭伟青[1] 王智[2] 李欣蓓[1] 

机构地区：[1]北京交通大学电子信息学院,北京100044 [2]北京交通大学理学院,北京100044

出　　处：《红外》2007年第5期21-25,48,共6页Infrared

摘　　要：本文介绍了基于干涉法和光谱吸收法的光纤甲烷气体传感器系统的原理、设计和系统结构,并对它们进行了比较。采用光学测量方法,不仅能精确测量甲烷气体浓度,而且安全可靠。尤其在1．6654μm波长处,采用光谱吸收法测量甲烷气体浓度,可使传感系统的灵敏度变得更高。The operation principle, design and system structures of the optical fiber methane gas sensors based on interferometry and spectrum absorption are presented and compared in this paper. The optical measurement method can not only be used to accurately measure the concentration of methane gas, but also be safe and reliable. Especially at the wavelength of 1.6654μm, the sensor system based on spectrum absorption can be more sensitive to the concentration of methane gas.

关 键 词：干涉 光谱吸收 光纤气体传感器 甲烷 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]