| 制作微型调频发射机 |
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| 引用本文： | 赵青,李栋.制作微型调频发射机[J].南通职业大学学报,2003,17(4):62-64. |
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| 作者姓名： | 赵青 李栋 |
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| 作者单位： | 南通职业大学,江苏,南通,226007 |
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| 摘 要： | 本介绍了微型调频发射机的一种制作方法及其工作原理。在微型发射机中，话筒将话音转化为音频信号，音频信号经放大后对载波进行调制，产生调频波，通过天线向外发射调频电磁波。用调频收音机便可以接听到清楚的话音。
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| 关 键 词： | 微型调频发射机 音频信号 载波 调频波 |
| 文章编号： | 1008-5327(2003)04-0062-03 |
How To Make Micro Frequency Modulation Emitting Machine |
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| ZHAO Qing,LI Dong.How To Make Micro Frequency Modulation Emitting Machine[J].Journal of Nantong Vocational College,2003,17(4):62-64. |
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| Authors: | ZHAO Qing LI Dong |
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| Abstract: | This paper introduces a method of making micro frequency modulation emitting machine as well as work principle of the machine.In this machine,the microphone transforms the sound into the audio fre-quencysignal.Afterbeingamplified,the audio frequencysignal modulates the carrywave to produce frequen-cy modulation wave.Then the antenna emits the frequency modulation electromagnetic wave outwardly.Us-ing the frequency modulation radio,you can hear the clear sound. |
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| Keywords: | micro frequency modulation emitting machine sound wave carry wave frequency modulation wave |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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