| 通信系统中“电触点”对信号传输的影响 |
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| 引用本文： | 孙百生,章继高,程履帮,林雪燕.通信系统中“电触点”对信号传输的影响[J].电子元件与材料,1999,18(5):37-38. |
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| 作者姓名： | 孙百生 章继高 程履帮 林雪燕 |
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| 作者单位： | 北京邮电大学电接触科研室,北京,100876 |
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| 摘 要： | 通信系统中电触点不良会造成对信号传输的影响。根据电接触理论结合高频传输的特点， 建立了电触点的物理模型， 研究发现当接触电阻大于传输线特性阻抗的两倍时， 接收端得到的信号幅度将减小一半以上（Ａ＜ １／４）， 从而将产生误码， 因而应尽可能减小接触阻抗
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| 关 键 词： | 电接触 误码率 连接器 接触阻抗 数字信号 |
| 文章编号： | ：1001-2028(1999)05-0037-02 |
The Effect of Electric Contacts in Communication System on the Signal Transmission |
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| SUN Bai-sheng,ZHANG Ji-gao,CHENG Lu-bang,LING Xue-yan.The Effect of Electric Contacts in Communication System on the Signal Transmission[J].Electronic Components & Materials,1999,18(5):37-38. |
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| Authors: | SUN Bai-sheng ZHANG Ji-gao CHENG Lu-bang LING Xue-yan |
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| Abstract: | ELECTRONIC COMPONENTS & MATERIALS(China) ,Vol.18,No.5,P.37 38(Oct.1999) .In Chinese. Poor contacts impair signal transmission.A physical model of electric contacts is established based on the electric contact theory and the transmission characters of the signal at high frequency.When contact resistance is two times higher than the transmission line characteristic impedance,the amplitude of received signal at the terminal may reduce by more than half ( A<1/4 ).Therefore,the error codes occur.It is necessary to reduce contact impedance.(3 refs.) |
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| Keywords: | electric contact error code rate connectors contact impedance digital signal |
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