摘要
阐述了光纤气体传感器的结构及工作原理,介绍了多点光纤气体传感系统OptoSniff的工作原理及其采用的直接探测和TDLS技术,并进行了实验室测试。结果表明,该系统具有传输距离长、响应时间快、测量精度高、不用定期标校的优点。该系统在煤矿中应用还存在无法实现就地声光报警等问题,需进一步研究。
The paper introduced structure and working principle of optical fiber gas sensor,and introduced working principle and new technologies of direct detection and tunable diode laser spectroscopy of multi-point fiber gas sensor system OptoSniff.The laboratory test results showed that the system has advantages of long transmission distance,fast response,high accuracy,and no periodic calibration.There is still a problem in application of the system in coal mine,namely the system can＇t achieve in-place sound and light alarms.
出处
《工矿自动化》
2011年第7期41-44,共4页
Journal Of Mine Automation
关键词
煤矿
光纤传感器
多点监测
远距离传输
coal mine
optical fiber sensor
multi-point monitoring
long-distance transmission
