光纤气体传感与谱特性研究  

Study about optical fiber gas sensor and spectral characters

作　　者：王俊锋[1] 贾振安[1] 周红[1] 王培培[1] 白亮[1] 

机构地区：[1]西安石油大学光电油气测井与检测教育部重点实验室,西安710065

出　　处：《光通信技术》2012年第12期36-38,共3页Optical Communication Technology

基　　金：陕西省自然科学基金项目(2011JM8028)资助;陕西省教育厅项目(2011JS050、09JS041、2010JS037)资助;陕西省“13115”科技创新工程重大科技专项项目(2009ZDKG-42)资助;西安石油大学研究生科研创新基金资助项目(2011cx100314)资助;西安石油大学青年科技创新基金项目(2011QN015)资助

摘　　要：吸收型气体传感器的结构决定气体传感器的灵敏度和吸收效果。根据C2H2气体的光谱吸收特性,设计了一种简易的测试C2H2气体吸收强度的传感器结构。基于Gaussian03软件计算C2H2气体分子的振动强度,从分子能级角度阐述了吸收型气体传感器在近红外光区选择性光谱吸收的特点。同时通过实验加以验证,对比了理论计算与实验结论。Structure of absorption-type gas sensor determines the sensitivity, as well as the effect of absorption. According to the characters of spectral absorption about acetylene, a simple testing sensor structure is de- signed for absorption intensity of acetylene. Based on Gaussian03, vibration intensityof acetylene molecule is calculated. From molecular level, we explain the characters of spectral selective absorption near infrared region. Meanwhile, it is to verify the conclusion through experiment, compare with theoretical calculation and experimental conclusion.

关 键 词：光纤气体传感器 C2H2 GAUSSIAN03 

分 类 号：TN253[电子电信—物理电子学]