| 气、湿敏传感器动态校准和动态性能改进研究 |
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| 引用本文： | 张广军,黄俊钦,罗先和. 气、湿敏传感器动态校准和动态性能改进研究[J]. 仪器仪表学报, 2002, 23(2): 206-208,220 |
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| 作者姓名： | 张广军 黄俊钦 罗先和 |
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| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100083 |
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| 基金项目： | 教育部优秀骨干教师基金，留学归国人员基金资助项目 |
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| 摘 要： | 本文首先提出了气体浓度和湿度的阶跃发生器，在此基础上介绍了气、湿敏传感器的动态校准方法。本文由实验阶跃响应数据建立了两个被校二氧化碳传感器的线性动态数学模型，并求出了频域的动态性能指标。最后，用模拟网络对上述两个二氧化碳传感器的动态性能进行了改进。改进结果表明，时域和频域的改进效果均较好。
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| 关 键 词： | 动态校准 动态性能改进 气体传感器 湿度传感器 动态数学模型 |
Dynamic Calibration and Dynamic Performance Improvement of Gas and Humidity Sensors |
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| Zhang Guangjun Huang Junqin Luo Xianhe. Dynamic Calibration and Dynamic Performance Improvement of Gas and Humidity Sensors[J]. Chinese Journal of Scientific Instrument, 2002, 23(2): 206-208,220 |
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| Authors: | Zhang Guangjun Huang Junqin Luo Xianhe |
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| Abstract: | A step function generator of gas concentration and humidity is firstly presented in this paper. A dynamic calibration method of gas and humidity sensors by using this step function generator is introduced. Based on the experimental step responses of two CO 2 sensors, the linear dynamic mathematical models of the calibrated sensors are established, and the frequency responses and the dynamic performances in the frequency domain are obtained. Finally, the dynamic performance improvement of the two CO 2 sensors by using analog circuit, and the improved effect both in the time domain and in the frequency domain are described. |
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| Keywords: | Dynamic calibration Dynamic performance improvement Gas sensors Humidity sensor Dynamic mathematical model |
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