| 基于扫频调谐预扫描的快速EMI测试关键技术研究 |
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| 引用本文： | 黄瑞龙,刘桂雄,黄坚,钟森鸣.基于扫频调谐预扫描的快速EMI测试关键技术研究[J].电子测量与仪器学报,2016,30(8):1269-1274. |
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| 作者姓名： | 黄瑞龙 刘桂雄 黄坚 钟森鸣 |
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| 作者单位： | 1. 广东石油化工学院计算机与电子信息学院 茂名525000;华南理工大学机械与汽车工程学院 广州510641;2. 华南理工大学机械与汽车工程学院 广州510641 |
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| 基金项目： | 广州市科技计划项目(201504010037) |
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| 摘 要： | 针对点频式测量方法进行EMI测试效率低的问题,基于扫频调谐预扫描实现EMI快速测试。首先,根据扫频、点频调谐测量方法的特点,提出基于扫频调谐预扫描、点频调谐终测量的快速EMI测试系统框架及拓扑关系;其次,研究扫频调谐式预扫描的误差补偿技术,研究环境电平、天线与馈线对测试精度影响的补偿方法;最后,按照GB14023-2011规定,搭建专用于车辆扫频调谐预扫描的快速EMI测试系统,实现误差修正、数据存储、数据处理等高度定制化功能.结果表明:在30~1 000 MHz频段的峰值检波,使用扫频调谐预扫描可以节省时间47.4 s,提高检测效率33.02%。
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| 关 键 词： | 电磁骚扰 测试系统 扫频调谐 误差补偿 |
Research on key technology of rapid EMI measurement method based on swept tuned pre scanning |
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| Huang Ruilong,Liu Guixiong,Huang Jian and Zhong Senming.Research on key technology of rapid EMI measurement method based on swept tuned pre scanning[J].Journal of Electronic Measurement and Instrument,2016,30(8):1269-1274. |
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| Authors: | Huang Ruilong Liu Guixiong Huang Jian and Zhong Senming |
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| Affiliation: | 1. School of Computer & Electronic Information, Guangdong University of Petrochemical Technology, Maoming 525000, China;
2. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510641, China,School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510641, China,School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510641, China and School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510641, China |
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| Abstract: | Aiming at the low efficiency of separate Electro Magnetic Interference (EMI) measurement method, a rapid EMI measurement method based on swept tuned pre scanning was proposed. First, according to the characteristics of sweep and separate tuned measurement method, the framework and the topological relation of rapid EMI measurement system based on swept tuned pre scanning is proposed. Second, electromagnetic field emission measurement error caused by environment, antenna and transmission was analyzed and compensated. Finally, according to the Chinese National Standard GB14023-2011, an EMI automatic rapid measurement system dedicated to the vehicle was set up. The design method of EMI measurement system could ensure the measurement steps, error correction, data storage, data processing and any other customized function implementation. The result shows that at bands from 30 to 1 000 MHz using swept tuned peak detection pre scanning can decrease about 33.02% time. |
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| Keywords: | EMI measurement system swept-tuned error compensation |
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