| 摘要: |
| 本文介绍了采煤机遥控系统的信道计算、收发信机的主要技术指标、接收机方案和发射机电路设计。该系统的接收机具有体积小、方案简单、抗干扰能力强等优点。其发射机频率稳定度高,调制频偏大,在电源电压变化约30％的条件下亦能稳定工作。电路中还首次采用了微波晶体直接调频方案。 |
| 关键词: 三遥技术,收发信机 |
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| Abstract: |
| This paper describes channel calculation of remote control system for coal cutlers, the main specification of transmitter-receiver, version of receiver and design of transmitter circuit.Receiver of the system has advantages of small volume, simple version and very strong anti-interference.Transmitter has a high frequency stability and big FM deviation and can also operate under the changing of power supply voltage in the range of.30%. The directive FM version of microwave crystal in circuit is used at the first time too. |
| Key words: Telemetering,Remote Control and Remote Sensing,Transmitter-Receiver |
《电讯技术》编辑部 