基于光功率检测的瓦斯浓度检测系统  

Application of Optical Fiber Sensor in the Gas Detection

作　　者：李筱熠[1] 官洪运[1] 

机构地区：[1]东华大学信息科学与技术学院,上海201620

出　　处：《光纤与电缆及其应用技术》2008年第2期12-14,30,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：近几年我国接连发生多起特大瓦斯事故。为了保护国家财产及公共安全,进行有效的瓦斯浓度检测,采用了对光谱吸收前后的光功率检测对比的方法,设计了瓦斯检测系统。将新系统与一般传感系统进行了对比分析和理论证明。结果表明新系统克服了传统瓦斯传感器的缺点,并且大大提高了测试精度。In recent years accidents happen frequently in coalmines of China. In order to protect national properties and public security a gas detection system is designed based on the comparison of optical powers before and after spectrum absorption, so as to effectively detect the gas concentration in coalmines. The new designed system is compared with conventional sensor system and analyzed theoretically. The result shows that the new system has overcome the shortcomings of conventional one and the detection accuracy is increased significantly.

关 键 词：光纤传感器 瓦斯检测系统 光谱吸收 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]