自制光电控制智能化吸氧计时器

An Intelligent Photoelectric Oxygen-Inhalation Calculagraph

介绍一种自行研制的光电控制智能化吸氧累积计时器。将光电控制的探头固定在未通气状态下氧气流量表的浮标处,打开氧气流量开关,浮标上升即开始供氧计时：停止吸氧,浮标下落,即停止计时：再次吸氧,累积计时。

This paper introduces a self-made intelligent oxygen-inhalation accumulative calculagraph.A photoelectric probe is fixed on the buoy of the oxygen flowmeter under non-ventilation conditions.When the oxygen flowmeter is switch on, the buoy floats up,the oxygen supply begins and the timing starts at the same time.When oxygen inhalation pauses, the buoy goes down and the timing stops.When oxygen inhalation starts again,the timing continues and accumulates.