| 无线设备在矿井中使用时的功率限制研究 |
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| 引用本文： | 杨卫华. 无线设备在矿井中使用时的功率限制研究[J]. 无线电工程, 2008, 38(1): 47-48,61 |
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| 作者姓名： | 杨卫华 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北,石家庄,050081 |
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| 摘 要： | 针对矿井内存在多种易燃易爆气体的环境,介绍了引起瓦斯爆炸的基本途径以及矿井内无线电信号的特殊传播性质。通过计算波导型波的多模功率、热电效应及电热转换,重点论述在瓦斯气体存在的环境中无线设备应选择合适的发射频率和功率,保证在连续工作于一定质量的煤灰时不产生150℃以上高温而引起瓦斯爆炸。
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| 关 键 词： | 瓦斯 功率 多模信号 波导型波 热量 物体质量 比热 温度 |
| 文章编号： | 1003-3106（2008）01-0047-02 |
| 收稿时间： | 2007-07-04 |
| 修稿时间： | 2007-07-04 |
Research on Power Limitation for Radio Operation in Mine |
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| YANG Wei-hua. Research on Power Limitation for Radio Operation in Mine[J]. Radio Engineering of China, 2008, 38(1): 47-48,61 |
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| Authors: | YANG Wei-hua |
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| Abstract: | Considering existence of various flammable and explosive gases in the environment of mine,the basic factors causing fire damp explosion and the special propagation characteristics of radio signal in mine are described.By calculating multimode power,thermoelectricity effect and conversion of waveguide wave,the emphasis is put on the selection of transmitting frequency and power of radio equipment in the environment with existence of gas to ensure that the temperature is not higher than 150℃ when continuous operating in the environment with a certain mass of coal dust to prevent from fire damp explosion. |
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| Keywords: | gas power multimode signal waveguide wave caloric mass of object specific heat temperature |
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