用于绝缘油中气体监测的半导体气敏传感器模型

ZHOU Lijun; WU Guangning; TANG Ping; WANG Hongliang; SU Chong

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用于绝缘油中气体监测的半导体气敏传感器模型

更新时间：2025-08-13

- 用于绝缘油中气体监测的半导体气敏传感器模型
- Automation of Electric Power Systems Vol. 30, Issue 10, (2006)
- 作者机构：
  
  1. 西南交通大学电气工程学院,四川省,成都市,610031
  2. 南京南自科技发展有限公司,江苏省,南京市,210003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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ZHOU Lijun, WU Guangning, TANG Ping, et al. [J]. Automation of electric power systems, 2006, 30(10).
DOI：

ZHOU Lijun, WU Guangning, TANG Ping, et al. [J]. Automation of electric power systems, 2006, 30(10). DOI：

摘要

利用塔板理论建立混合气体色谱柱分离的数学模型；分析了半导体气敏传感器的稳态、暂态响应与恢复特性，提出了关于传感器响应与恢复特性的3个假设：传感器稳态输出电阻的对数与气体浓度的对数服从正切关系，暂态响应特性取决于传感器当前的阻值状态和当前时刻的气体浓度，恢复特性取决于传感器当前阻值状态和下一时刻的气体浓度。采用实验与数值逼近等数学方法确定所需参数。最后设计了验证实验，结果表明将3个假设用于油中气体监测系统的半导体传感器能够满足要求。

Abstract

Three hypotheses about steady-state response

transient response and resuming behavior of the semiconductor gas sensor are proposed

according to which

the logarithm of the steady-state resistance value and the logarithm of the gases concentration obey the tangent function

the transient response is determined by the current resistance of the sensor and the gases concentration

while the resuming behavior is determined by the current resistance of the sensor and gas concentration at the next interval. In order to validate the hypotheses

gases separating function is then modeled based ob the stage model. Relative coefficients are obtained by experiment and mathematical methods. The gas separating model and the three hypotheses are validated by comparing the simulating results with the experimental ones

which shows that the hypotheses are rational as seen in their application in the semiconductor of the monitoring system for dissolved gases in insulation oil.

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