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.
出处
《红外》
CAS
2007年第5期21-25,48,共6页
Infrared
关键词
干涉
光谱吸收
光纤气体传感器
甲烷
interference
spectrum absorption
optical fiber gas sensors
methane
