| 湿敏电导的机理 |
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| 引用本文： | 严百平,朱秉升.湿敏电导的机理[J].西安交通大学学报,1997,31(8):39-43. |
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| 作者姓名： | 严百平 朱秉升 |
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| 作者单位： | 西安交通大学(严百平)，西安理工大学应用物理系(朱秉升) |
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| 摘 要： | 从氧化物表面的吸附特点出发，认为表面ＯＨ对湿度敏感起着非常重要的作用；在此基础上解释了湿度传感器中电子电导和离子电导同时存在的微观机理，并给出它们随环境湿度变化的数学关系．理论计算得到的阻湿特性与实验结果符合得很好；该理论也能定性说明湿度传感器的快速响应
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| 关 键 词： | 阻湿特性 OH群 电子电导 离子电导 |
Mechanism of Humidity Sensitive Conductance |
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| Yan,Baiping,Zhu,Bingsheng.Mechanism of Humidity Sensitive Conductance[J].Journal of Xi'an Jiaotong University,1997,31(8):39-43. |
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| Authors: | Yan Baiping Zhu Bingsheng |
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| Abstract: | Based on the characteristics of surface adsorption, it is reasonable to think that the OH groups present at the surface of the oxides play an important role in the conductance process. We have successfully explained the micro mechanism that the electronic conductance and ionic conductance exist simultaneously in the whole relative humidity range, and the relation between the sensor impedance and relative humidity has been derived from above viewpoint. The impedance humidity characteristics derived from theoretical calculation well agree with the experimental results. The theory can also explain the fast response of humidity sensors. |
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| Keywords: | impedance humidity characteristics OH groups electronic conductance ionic conductance |
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