离散半球体电阻式气体传感器的研究  

Study on discretized hemispheric resistance-type gas sensor

作　　者：张清锦[1] 陈向东[1] 杨英[1] 赵良[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《传感器与微系统》2010年第2期29-31,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(60572026;60871024);教育部新世纪优秀人才支持计划资助项目(A0160419950120)

摘　　要：提出了一种新型气体传感器敏感结构模型,即在传统连续平面敏感结构的基础上,将连续平面敏感结构的上半部分离散化,使之成为离散半球体阵列结构,建立半球体的扩散方程,分析了具有新型和传统型敏感结构的传感器的响应时间,并进行比较,说明具有离散半球体阵列敏感结构的传感器具有更快的响应速度。A new type of sensitive structure model of gas sensor is presented. On the basis of traditional continuous flat sensitive structure, the top half is discrete, and becomes discrete hemisphere array structure. A diffusion equation of the hemisphere is established, and the respective response times of gas sensors which have new-type and traditional sensitive structure respectively are analyzed and compared. The results show that gas sensor with discretized hemisphere array sensitive structure has faster response speed.

关 键 词：离散化 半球体 响应时间 气体传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]