Study on Optical Fiber CO Gas Sensor Based on Difference Absorption

摘要：

By analysing the near infrared spectral absorption of CO molecule and considering factors such as compatibility with the transmission characteristics of silica optical fiber and the price, a kind of all- fiber remote sensor utilizing Fiber Bragg Grating (FBG) filters and 1.567pm high power light-emitting diode (LED) was developed for real time absorption measurement. And a novel faint signal detective method by using a digital phase sensitive detector (DPSD) is designed. FBG has a low insert loss and can be produced easily compared with dielectric interference filters. Theory and experiment proved that the system has simple construct and high sensibility.

作者: Y J Wang Y T Wang Y Y Kang

作者单位: Institute of electric engineering, YanShan University.Qinhuangdao, 066004, China Department of elect Institute of electric engineering, YanShan University.Qinhuangdao, 066004, China Department of lectronic engineering, HeBei Normal University, Shijiazhuang, 050031, China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 1172-1175

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）