摘要
水汽、粉尘及湿润的巷道壁均会衰减巷道内电磁波的传播。水汽的影响在频率不太高时可忽略;巷道壁潮湿的影响显著,且与电磁波的频率和模式有关。粉尘使电磁波的衰减随频率的增加而增加。
The moisture,dust and wet wall all are decaying the transmission of electromagnetic wave in the roadway.The influence of moisture is ignorable,if the wave is low-frequency.Otherwise,the influence of others is more evident： dust increases the rate of decay in direct ratio with frequency,and the influence of wet wall is related to the frequency and model of the wave.
出处
《煤矿机电》
2010年第4期22-24,共3页
Colliery Mechanical & Electrical Technology
关键词
水汽
粉尘
巷道
电磁波
衰减率
moisture
dust
roadway
electromagnetic wave
rate of decay
