EVALUATION OF FLOW VOLUME IN A CAPILLARY USING DYNAMIC LASER SPECKLES BASED ON THE PHOTON-CORRELATION

被引:22
作者
AIZU, Y
ASAKURA, T
OGINO, K
SUGITA, T
机构
[1] HOKKAIDO UNIV,APPL ELECT RES INST,SAPPORO,HOKKAIDO 060,JAPAN
[2] KOWA CO LTD,CHOFU LAB,CHOFU,TOKYO 182,JAPAN
关键词
D O I
10.1016/0030-4018(90)90495-F
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A method is studied for evaluating a flow volume with high concentration of particles in a capillary be means of the photon correlation measurements of dynamic laser speckles. The time-correlation length of speckle intensity fluctuations is experimentally investigated in relation to the capillary diameter. Experiments are also conducted to verify the possibility of compensating the diameter dependence of time-correlation length. The results show that the present method is useful for measuring the relative flow volume in the capillary having a known diameter.
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页码:1 / 6
页数:6
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