| GTEM室频域校准系统及其不确定度评定 |
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| 引用本文： | 严雪飞,刘卫东,王佳,欧渊,石根柱. GTEM室频域校准系统及其不确定度评定[J]. 北京理工大学学报, 2020, 40(7): 771-777. DOI: 10.15918/j.tbit1001-0645.2018.333 |
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| 作者姓名： | 严雪飞 刘卫东 王佳 欧渊 石根柱 |
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| 作者单位： | 1. 陆军工程大学石家庄校区 强电磁场环境模拟与防护技术国防科技重点实验室, 河北, 石家庄 050003; |
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| 基金项目： | 国家部委预研项目（9140C87102014C87363） |
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| 摘 要： | 研究了脉冲电场的频域校准方法并对其不确定度进行了评定,针对脉冲电场的校准需求,以三维脉冲传感器为例,建立了一套基于GTEM室的频域校准系统,通过仿真和实验,对GTEM室产生标准电场的不确定度以及传感器和标准电场之间相互影响的不确定度进行了分析,通过不确定度合成,得出了在置信概率>95%时,校准的总不确定度为4.45%.在此基础上对三维脉冲电场进行了频域校准,校准结果表明,传感器在10 MHz～1 GHz内有着比较平坦的幅频响应.本文的研究对于分析电场传感器的频域校准有一定的参考意义.
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| 关 键 词： | 脉冲电场 三维传感器 频域校准 不确定度 |
| 收稿时间： | 2018-08-18 |
Frequency Domain Calibration and Uncertainty Evaluation in GTEM Cell |
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| YAN Xue-fei,LIU Wei-dong,WANG Ji,OU Yuan,SHI Gen-zhu. Frequency Domain Calibration and Uncertainty Evaluation in GTEM Cell[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2020, 40(7): 771-777. DOI: 10.15918/j.tbit1001-0645.2018.333 |
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| Authors: | YAN Xue-fei LIU Wei-dong WANG Ji OU Yuan SHI Gen-zhu |
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| Affiliation: | 1. National Key Laboratory of Science and Technology on Strong Electromagnetic Environment Simulation and Protection, Ordnance Engineering College, Shijiazhuang, Hebei 050003, China;2. College of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050003, China;3. Army Armored Force Academy, Beijing 100071, China;4. Institute of Systems Engineering, Academy of Military Sciences, Beijing 100082, China |
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| Abstract: | The frequency domain calibration method of pulsed electric field was studied and its uncertainty was evaluated. According to the calibration requirement of pulsed electric field, a frequency domain calibration system based on GTEM cell was established. Through simulation and experiment, the uncertainty of standard electric field produced in GTEM cell and the uncertainty of interaction between sensor and standard electric field were analyzed. Synthesizing the uncertainties, the total uncertainty of the calibration was 4.45% when the confidence probability is more than 95%. Based on this, a three-dimensional pulsed electric field was calibrated in frequency domain. The calibration results show that the sensor has a relatively flat amplitude frequency response in 10 MHz~1 GHz. The research in this paper can provide a certain reference value for analyzing the frequency domain calibration of electric field sensors. |
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| Keywords: | pulsed electric field three dimensional sensor frequency domain uncertainty of calibration |
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