摘要：对哈特曼装置上的粉尘粒子速度及均方根（ｒｏｏｔ－ｍｅａｎ－ｓｑｕａｒｅ，ＲＭＳ）湍流速度进行了测量及研究，获得了哈特曼装置上不同位置粉尘粒子速度、ＲＭＳ湍流速度随时间的变化曲线。粉尘粒子速度采用激光多谱勒测速仪进行测量。文中还对激光测速法及数据处理中ＲＭＳ计算窗口的选取进行了讨论。

关键词：粉尘爆炸;哈特曼装置;均方根湍流速度;

Abstract：The particle velocity and rootmeansquare(RMS) turbulence velocity on Hartmann bomb are measured and researched,the changing curve of particle velocity，RMS turbulence velocity at various positions are obtained.The particle velocity is measured by LaserDopplerAnemometer.The selection of RMS calculating window during laser measuring and data treating is also discussed.

Keyword：dust explosion; Hartmann bomb; rootmeansquare turbulence velocity;