本文提出一种新型的药剂加入方式——数控程序加入法,该方法依据周期内脉冲间隔和对应的时间函数关系,采用了一种周期门控和选择门控电路的组合方案。这种加药方法与一般在线使用的杯式给药或虹吸管加药比较有明显的二大优点:(1)加药准确给药误差小;(2)调正药量迅速、随意。装置采用数码显示直观醒目,使用方便,尤其适合中小型选厂使用。 In this paper, we propose a new method of adding pharmaceuticals - NC program, which adopts a combination of periodic gating and selective gating based on the pulse interval and corresponding time function in the cycle. This dosing method and the general online use of cup or siphon tube dosing compared to the obvious two major advantages: (1) increase the accuracy of drug delivery error is small; (2) to adjust the drug quickly and freely. The device uses a digital display intuitive and eye-catching, easy to use, especially for small and medium plant use.