摘要：为了测量和分析瞬态喷雾过程的雾化特性，设计了激光瞬态颗粒测量装置，并以此对标准颗粒、医用喷雾器、柴油机喷嘴、结晶成核过程等作了验证试验，证．明其具有测量准确、快速简便、自动化程度高等优点。

关键词：激光夫朗和费（Fraunhofer）衍射;瞬态脉冲喷雾;同步触发;

Abstract：In order to study and estimate a transient characteristics of an intermittent sprayin one shot injection, a novel particle sizer was designed. A detector array of a conventional particlesizer based on a Fraunhofer diffraction was used and a high - resolution and a time - resolved particle sizer had been made.A time - dependent characteristics of spray in one shot was analvzed

Key words：laser Fraunhofer diffraction;intermittent spray;parallel hold