七、焊接电源遥控调节焊接电源遥控调节是一个开环操作系统,它与上述自动调节系统的区别在于通常不用传感器接收讯号,而是由操作者发出指令。操作者发出的指令可以是较强的讯号,因此可以没有放大部分。但操作系统的执行部分与调节系统相似,都需要用伺服电机或功率开关(继电器、可控硅等),并且它们 Seventh, the remote control of the welding power source The remote control of the welding power source is an open-loop operating system. It differs from the above-mentioned automatic adjustment system in that it does not normally receive signals from sensors, but rather commands from the operator. The instruction sent by the operator can be a stronger signal, so there can be no enlargement. However, the operating part of the operating system is similar to that of the regulating system, and servo motors or power switches (relays, thyristors, etc.) are required for the operating system, and they