摘要
很多人对液体粒子场的测量十分感兴趣,并且已有人进行了这方面的研究,但是对于液体颗粒的直径,粒子空间分布,很少有人得到较理想的结果。本文将介绍以下内容:(1)用全息术测量液体粒子场原理;(2)同轴远场拍摄光路; (3)同轴再现光路;(4)粒子场信息处理方法;(5)测量结果。最终的测量结果表明,用激光全息方法测量动态液体粒子场中的粒子直径、粒子空间分布具有迅速、准确、非接触之优点,用这一方法可以得到令人满意的结果。
Many people are much interested in measuring the liquidparticle field which has been studied by some body,But few of themobtained more ideal results concerning the diameter of liquid particle,itsspatial distribution and speed.The following contents are introducedby the author of this paper.(1)principle of measuring liquid particlefield by means of holography;(2)Light path for taking the hologramsby in-line far-field holography;(3)Hologram reconstruction of particlefield by in-line holography;(4)The processing method for the informationof partical field;(5)Showing the measured results.It is shown by the final measured results that particle diameter,space distribution and speed in dynamic liquid particle field can bequickly,accurately and non-contact measured by laser holographicmethod,and satisfactory results can be achieved.
关键词
全息
激光
消防
水喷雾
水粒测量
holography
laser
fire
water spraying
particle measuring
