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掌握呼吸机的物理性能对研制及选择呼吸机能起指导作用。我们对鞍山JDI型及JDⅡ型、天津YRII型、上海SC型、KTHⅡ型及日本aika R120型呼吸机的吸气期间物理性能进了测定。一、测定方法及理论基础呼吸机吸气期的机械量可和电学量类比,如图1a所示。电源可以表示为电动势发生器(E),包含内阻(R),并且被电容(C)所短路。对于给定的E和给定的负载电路,电流和电压与R和C有关。由于电学量
To master the physical properties of ventilator to guide the development and selection of breathing function. We measured the physical properties during inhalation of Anshan JDI and JDⅡ, Tianjin YRII, Shanghai SC, KTHⅡ and Japan aika R120 ventilator. First, the determination of the method and theoretical basis Ventilator breathing machine during the mechanical and electrical quantities can be analogy, as shown in Figure 1a. The power supply can be expressed as an electromotive force generator (E), which contains the internal resistance (R) and is short-circuited by the capacitor (C). For a given E and given load circuit, the current and voltage are related to R and C. Due to the amount of electricity