The control system model consists of control strategy, sensors and actuators sub models. The control strategy is a PID controller.

控制系统模型包括控制策略、传感器和执行器模型，本文选用的控制策略为PID调节器。

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The hardware of the system comprises the five sub-systems, i. e. welding power source, arc length controller, welding wire feeder, welding head traveller and detector.

此系统的硬件主要包括五个子系统，即：焊接电源、弧长控制器、送丝机构、焊矩行走机构和检测机构；

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Then the thesis states design decision on controller software system and the flow chart or the calculating description on sub-process of key module.

然后阐述了控制器软件系统设计方案，并给出关键模块子程序流程图或算法描述。

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According to company CEO Michael Buckwald, who I caught up with recently for the NextMarket podcast, the Leap Motion controller can identify the sub-millimeter tremor or jitter in our hand that is unique to each of us.

FORBES: Could That Shake in Your Hand Replace Your Password? Leap Motion Thinks So