For arc ultrasonic excitation, both the continuous and the pulse signal was separately applied to the test system including a conventional arc welding circuit.
在常规弧焊回路中采用了连续波和脉冲敲击式等不同的激励方式获得电弧超声信号。
2
The DSP realizes functions of sampling, PI regulation, communication and so on to digitally control the excitation current of arc-suppression coil with magnetic bias.
DSP主要完成采样、PI调节和通信等，实现偏磁式消弧线圈励磁电流的数字控制。
3
The example of calculating the excitation field at no-load for a large turbogenerator shows that the advantages of arc elements are highly accurate and easy to use.