摘要
对接地的概念、技术要求和接地的目的进行了详细的阐述,通过由接地极流入大地的电流,以接地极之间的相干性为例,详细分析了地电位变化的成因。根据大功率广播发射机的运行情况,从发射机的接地、天馈线接地、电缆屏蔽层接地及接地点的选取等多方面研究了电子设备应对地电位变化的措施。
The concept,technical requirements and purpose of the grounding are discussed in detail.Through the current from the grounding electrode into the earth,the cause of the potential changes is analyzed with the coherence between the grounding electrodes as an example.According to the operating condition of the high-power radio transmitter,the measures on the ground potential changes of electronic equipment are discussed in terms of the groundings of the transmitter,antennafeeder and cable shielding layer,and the selection of the ground points.
出处
《电子产品可靠性与环境试验》
2011年第2期7-12,共6页
Electronic Product Reliability and Environmental Testing
关键词
接地
地电位变化
电子设备
措施
研究
grounding
ground potential changes
electronic equipment
measures
research
