提出一种新型光电式液位检测方法，利用输液管对光线的折射原理，检测输液管内的液位是否到达警戒液位，最后通过实验得出最佳检测阈值，该方法能够适用于所有墨菲式输液管及输液液体。%A novel photoelectric liquid level detection method is proposed,which uses the light refraction of transfusion tube to detect whether the liquid level in infusion tube reaches the warning level. The optimum detection threshold is obtained through the experiment. The method can be applied to all the Murphy type transfusion tube and infusion liquid.
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