The paper analyzes the shock mechanism and affect of optical encoder. The shock absorption circuit for optical encoder using microprocessor is designed.

分析了光电编码器的振动机理及影响，设计了用单片机进行控制的减振电路。

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The simulation circuit for microprocessor and simulation wave using FPGA is also given. The reliability and practicability of microprocessor shock absorption circuit are validated accordingly.

并用FPGA模拟单片机减振电路，给出其仿真波形，从而验证了单片机减振电路的实用性。

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Therefore, it can be seen around the circuit elements and fans have a lot of dust absorption.

因此，可以看见电路元件及风扇周围都吸附了大量的灰尘。

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