摘要：为了探索一种实时在线测量烟幕气溶胶质量浓度的新方法,利用电子低压冲击仪对不同烟剂装填量、压力及施放时间条件下形成的烟幕气溶胶质量浓度进行测试分析。结果表明:利用电子低压冲击仪可以实时在线测量烟幕气溶胶质量浓度,当施放压力、烟剂装填量及施放时间改变时,对气溶胶粒子数浓度和质量浓度分布均有不同影响。烟剂装填量增大,粒子数浓度和质量浓度均相应增大;施放压力增大时,粒子数浓度略有增大。

关键词： 烟幕气溶胶;质量浓度;在线测量

Abstract： In order to research a new way for online determination of the mass concentration of smoke-screen aerosol， the mass concentration of smoke-screen aerosol on the different discharging conditions was studied by electrical low pressure impactor （ELPI）. The experimental results showed that it was practicable for online determination of the mass concentration of smoke-screen aerosol by ELPI. The different effect of the mass concentration and quantity concentration could be received by the different condition on the conveying pressure， capacity and time. The quantity concentration and mass concentration increased relatively along with the increasing of the capacity. The quantity concentration of the aerosol increased slightty when the pressure increased. 

Keywords： smoke-screen aerosol； mass concentration； online determination