| 基于SnO2 气体传感器对CO 的动态检测及原理 |
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| 引用本文： | 孟凡利,黄行九,孙宇峰,刘锦淮.基于SnO2 气体传感器对CO 的动态检测及原理[J].传感技术学报,2005,18(1):53-56,62. |
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| 作者姓名： | 孟凡利 黄行九 孙宇峰 刘锦淮 |
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| 作者单位： | 1. 中国科学院合肥智能机械研究所,中国科学院研究生院,中国科学院合肥物质科学研究院,合肥,230031
2. 中国科学院合肥智能机械研究所,中国科学院研究生院,中国科学院合肥物质科学研究院,合肥,230031;中国科学技术大学化学系,合肥,230026 |
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| 基金项目： | 国家自然科学基金，安徽省自然科学基金 |
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| 摘 要： | 研究以单个SnO2传感器为敏感元件对CO进行动态检测;讨论了SnO2气体传感器动态检测方法的理论基础.结果表明,运用动态检测方法明显提高了SnO2传感器对CO的选择性,动态检测方法是建立在半导体电导率温度依赖特性基础上的.
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| 关 键 词： | SnO2传感器 动态检测 一氧化碳 |
| 文章编号： | 1004-1699(2005)01-0053-04 |
Detection and Analysis in Theory of CO by Dynamic
Measurement Based on a Single SnO2 Gas Sensor |
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| MENG Fanli,HUANG Xingjiu,Sun Yufeng,Liu Jinhuai.Detection and Analysis in Theory of CO by Dynamic
Measurement Based on a Single SnO2 Gas Sensor[J].Journal of Transduction Technology,2005,18(1):53-56,62. |
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| Authors: | MENG Fanli HUANG Xingjiu Sun Yufeng Liu Jinhuai |
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| Affiliation: | Institute of Intelligent Machines , Chinese Academy of Sciences , Graduate School of the Chinese Academy of Sciences ,
Hefei Institutes of Physical Science , Chinese Academy of Sciences , Hefei 230031 , China |
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| Abstract: | The gas sensing behavior of a single SnO_2 sensor was investigated in detecting carbon monoxide gas based on a dynamic measurement method in which temperature was modulated by heating waveform and frequency. The set of devices of detecting carbon monoxide gas and the whole operating processing was illuminated. The selectivity to carbon monoxide detecting of the SnO_2 gas sensor was raised by the dynamic measurement method. Finally, the mechanism of dynamic measurement was given based on the relation between electric conductivity of semiconductor material and concentration and mobility of charge carrier (electron and hole). |
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| Keywords: | SnO_2 sensor dynamic measurement carbon monoxide |
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