模拟机载分子筛供氧在高空迅速减压时对生理的影响

 通过模拟分子筛制氧系统供气范围，即减压前富氧气体的高空迅速减压实验，观察对机体的生理影响和氧反向弥散的变化。实验结果表明，当供氧浓度低于60％，在缺氧暴露10ｓ内出现缺氧反应；而高于70％，在迅速减压后6～8ｓ之内的生理反应是等效的。高空迅速减压后氧的的反向弥散有两个过程，且与减压瞬间生理效应和有效意识时间有联系。

THE EFFECTS OF ALTITUDE RAPID DEPRESSION ON PHYSIOLOGY WITH OXYGEN SUPPLY FROM THE SIMULATED MOLECULAR SIEVE OXYGEN GENERATING SYSTEM

The effects on physiology and oxygen inversive diffusion following the rapid decompression at high altitudes,with various oxygen-rich supplies before decompression simulating the range of gas from the molecular sieve oxygen generating system(MSOGS)were observed. The results demonstrated that while the oxygen content was lower than 60%, the hypoxia sign appeared within 10s after hypoxia expose. There was a physiological equivalent range in 6～8s after decompression when it was beyond 70%. The oxygen inversion diffusion after decompression had two processes, which was associated with the time of useful consciousness and physiological effects.