光纤通信在自动控制设备中的应用

Applying Fiber-optic Communication to Autocontrol Devices

针对电气拖动自动控制设备中触发脉冲长距离传输中易受干扰的问题，根据光纤通信的基本工作原理，提出用光纤作为传输通道来解决，并设计出用１根光纤传输６路触发脉冲的两种不同光纤传输系统。同时根据自动控制设备中模拟信号和串行数字信号、开关信号在长距离传输中的抗干扰的问题及技术要求，设计出模拟信号光纤传输系统和串行数字信号光纤传输系统。

The working principle and the usage of fiber-optic communication are introduced.The pulses used to trigger thyratron transistors in a autocontroldevicesareeasytobe disturbed electromagnetically when they are transmitted in a long metal wire.So here a long optical fiber is introduced to transmit the pulses instead of the long metal wire,and six channels of pulses will be transmitted in one optical fiber.Two methods have been used to identify each channel of pulses,so two triggering pulse transmission systems are built.In order to decrease the possibility of electromagnetic disturbance on signal of analogy and serial digital signal,the fiber-optic transmission systems of analogy signal and serial digital signal are also built.