为了改善运行的精度，通过视觉传感器的光学反馈控制，可精密地调整机器人手臂。

For improving accuracy of performances, it can help precisely adjust the robot hand by means of optical feedback control using visual sensors.

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本论文的内容涉及电学、光学、半导体致冷技术等多方面知识，以及负反馈控制和PID控制理论。

This paper involves the knowledge of electronic theory, optical theory, thermoelectric cooling technology, and the theory of negative feedback control and PID control.

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