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本文介绍了伺服图形预刻机中光路控制的方法.通过控制声中光调器的输入实现光强和脉冲调制,通过采样光强维持功率恒定.文中给出了实际的接口和电路.
In this paper, the method of optical path control in servo pre-engraving machine is introduced.The light intensity and pulse modulation are realized by controlling the input of the light modulator in the sound and the power is kept constant by the sampling light intensity.The actual interface and circuit are given in this paper.