多通道瞬态全息粒子场测量  

Measurement of multipass transient holographic particle field

作　　者：梅文辉 赵达尊 

出　　处：《光学技术》1993年第2期2-7,17,共7页Optical Technique

基　　金：高等学校博士学科点专项科研基金

摘　　要：采用光学多通道方法进行粒子场的全息拍摄,可以有效地减小相干噪音的干扰,同时极大地提高了对粒子场的层析能力,对于粒子大小为100μm下的粒了场层析能力能达到1mm。前后粒子之中可以互不干扰,便于准确地测量粒子的大小、运动方向和速度等。文中进行了理论分析和实验,结果较好。Using optical multipass method to take a hologrtam of particle field can efffectively reduce the interference of coherent noise,and at the same time it can greatly improve the ability of stratification analysis of particle field. To the particle field that the aize of particle is not larger than 100μm, the ability of stratification analysis can reach 1mm. the front and back particle can not interfere with each other. The size ,moving direction and speed of particles can be measured conveniently and accurately. The theoretical analysis is given and the experiment with good results is shown. Keywords: Holography; multipass holography; particle field.

关 键 词：多通道全息 微粒场 全息照相术 

分 类 号：TB877[一般工业技术—摄影技术]