摘要
在射频天线辐射场中的井下金属结构可以等效为接收天线,聚焦在金属结构上的电磁波能量在刮擦条件下会以放电火花的形式释放,目前缺乏测试方法和实验设备对电磁波能量引起的放电火花进行测试。为解决这一问题,本文开展电磁波能量安全性分析测试平台的研究,针对电磁波能量耦合到金属结构上的不同途径,设计了辐射场耦合能量测试装置、电磁波能量磁共振耦合功率测试装置和电磁波能量放电火花实验装置,在此基础上进行了射频信号源在刮擦条件下的火花功率实验。实验结果表明,当信号源输入功率小于4.1 W时,射频电磁波能量引起的放电火花不会引燃瓦斯气体。
The underground metal structure in the radiation field of the radio frequency antenna can be equivalent to the receiving antenna.The energy of electromagnetic wave focused on the metal structure will be released in the form of discharge spark under scratch condition.At present,there is no testing method and experimental equipment to measure the discharge spark caused by electromagnetic wave energy.In order to solve this problem,this paper develops a testing platform for electromagnetic wave energy security analysis.According to the different ways of coupling electromagnetic wave energy to metal structure,the platform designs three kinds of devices:radiation field(RF)coupling energy test,electromagnetic wave energy magnetic resonance coupling power test and electromagnetic wave energy discharge spark experiment.On this basis,the spark power experiment of the RF signal source under scratch condition was carried out.The experimental results show that when the output power of the signal source is less than 4.1 W,the spark caused by the energy of the RF electromagnetic wave would not ignite the gas.
作者
冯柳
高鹏飞
张立亚
王文清
Feng Liu;Gao Pengfei;Zhang Liya;Wang Wenqing(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology,Beijing 100083,China;Coal Research Institute Co.Ltd.,Beijing 100013,China;Beijing Polytechnic College,Beijing 100042,China)
出处
《矿业科学学报》
2019年第5期441-447,共7页
Journal of Mining Science and Technology
基金
国家重点研发计划专项(2016YFC 0801804)
国家自然科学基金(51674269)
关键词
电磁波能量
爆炸性气体
安全性
分析测试平台
electromagnetic wave energy
explosive gas
safety
analysis and test platform
作者简介
冯柳(1981—),女,江西景德镇人,博士研究生,主要从事无线电传输方向的研究工作。Tel:13718853221;E-mail:fengyayaliu@126.com。
