The main welding parameters such as welding current, arc voltage and welding speed have been optimized by the orthogonal test and welding arc dynamic wavelet analysis instrument.

运用正交试验，结合自行研制的焊接电弧动态小波分析仪对焊接电流、电弧电压、焊接速度等主要焊接工艺参数进行了优化研究。

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The experiment and test results show that the adapter has fast load dynamic response and low output voltage variety and fits the specification of design.

试验与测量结果表明：改进后的适配器负载动态响应速度快、输出电压变化量小，满足适配器的设计标准。

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Dynamic current testing can detect some faults that cannot be detected by voltage based test method and quiescent current test method.

瞬态电流测试可以检测一些用电压测试和稳态电流测试不能检测的故障。

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