以较高的灵敏度和抗干扰能力测得了扩散型真空电弧的弧后电流值；
It is suitable for diffused vacuum arcs and of fairly high sensitivity and good anti-interference ability.
分析了不同电源条件下的弧后电流。文中指出，扩散型真空电弧的分断极限是由电击穿决定的，而不由弧后电流引起的热击穿所定。
It has also been found that diffused vacuum arcs with a high current gives a low post-arc current and that the limitation to the breaking capacity for dif…
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
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