摘要
A generator to induce simulated underpressure of blast waves has been designed andapplied for the study of underpressure injuries in animals.The generator consists of a vacuumchamber,a vacuum pump,an experimental chamber,a membrane-rupturing device,and apressure-measuring system.When the pressure in the vacuum chamber is reduced with the suc-tion of the vacuum pump to a given level,the membrane separating the vacuum chamber andthe experimental chamber,in which the experimental animal is fixed,is ruptured instantly by asharp pointer.Underpressure occurs in the experimental chamber as soon as its pressure is re-duced rapidly.The physical parameters of the simulated underpressure of blast waves rangefrom-13 to-90 kPa for the peak level,1 to 90 ms for the decreasing time and 14 to 2000 msfor the duration.Animal experimentation with the generator verified that underpressure can in-flict injuries on living bodies as well.
A generator to induce simulated underpressure of blast waves has been designed and applied for the study of underpressure injuries in animals.The generator consists of a vacuum chamber,a vacuum pump,an experimental chamber,a membrane-rupturing device,and a pressure-measuring system.When the pressure in the vacuum chamber is reduced with the suc- tion of the vacuum pump to a given level,the membrane separating the vacuum chamber and the experimental chamber,in which the experimental animal is fixed,is ruptured instantly by a sharp pointer.Underpressure occurs in the experimental chamber as soon as its pressure is re- duced rapidly.The physical parameters of the simulated underpressure of blast waves range from-13 to-90 kPa for the peak level,1 to 90 ms for the decreasing time and 14 to 2000 ms for the duration.Animal experimentation with the generator verified that underpressure can in- flict injuries on living bodies as well.
基金
This study was supported by the National Natural Science Fundation of China(NSFC)
