A Novel NDIR CO2 Sensor Using a Mid-IR Hollow Fiber as a Gas Cell

摘要：

A novel CO2 non-dispersive infrared (NDIR) sensor using the mid-infrared (mid-IR) hollow fiber as a gas cell has been demonstrated. The mid-IR hollow fiber is chosen for its optimum transmission band (bandgap) overlap with CO2 fundamental absorption spectrum around 4.26 um to serve as a filter. A comparison with the system using a smooth metal cell is presented. The signal noise suggests that a measurement resolution better than 5 ppm concentration is achievable using this mid-IR hollow fiber. The response time of the system using hollow fiber can be in the order of shorter than 10s with the sensitivity of 1.82 mv/ppm.

作者: Jing Peng Xin-Min Ji Yi-Wei Shi Quan Liu Zong-Ming Bao Yi-Ping Huang

作者单位: Department of Microelectronics, Fudan University, Shanghai 200433, China Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 1489-1491

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）