并且利用USB总线将计算机与测试台相连可完成波形数据的实时下载，实现了信号源的实时可编程。
Realizing real-time programmable of signal source by real-time downloading waveform data from the computer that connected test bench by USB bus.
焊接电流对电阻点焊有着重要的影响，因此在点焊过程中实时显示焊接电流波形是十分必要的。
Spot welding is greatly affected by the current, so the real-time display of current waveform in the welding is very necessary.
通过监测系统软件设计，实现对采样数据、波形和图形进行实时屏幕显示，对表面疲劳裂纹扩展进行动态监视。
The sampled data, sampled waveform and graph can be real time displayed, so that a supervision for the status of surface fatigue crack growing can be accomplished.
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